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2026 NPPES data Internal Medicine Physician NPI 1669682522 M.D.
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John Ferguson, M.D.

Internal Medicine Physician in Wheat Ridge, Colorado.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 174,792 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
605
Medicare Part D claims · 145 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.5/100
▲ 3 pts above national avg 83.5 · Above neutral
Industry payments
$4.9K
14 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

John Ferguson, M.D. reported a CMS MIPS final score of 86.5/100 - above the 83.5 national average - and filed 605 Medicare Part D claims in 2024.

86.5/100
MIPS score · +3 vs avg
605
Part D claims, 2024
55%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Federal trust snapshot

What official records show about John Ferguson, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1669682522), first enumerated 05/22/2007.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 605 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 86.5/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $4.9K in reported industry payments (14 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

Compare Ferguson with other Internal Medicine Physician providers

Same primary specialty, same federal CMS NPPES roster.

All 42 Internal Medicine Physician providers in Wheat Ridge, CO →

Also enrolled in Colorado

Other specialties in Wheat Ridge: Mental Health Counselor (427) · Clinical Social Worker (176) · Professional Counselor (121) · Addiction (Substance Use Disorder) Counselor (106)

CMS NPPES provider registry desk

NPI 1669682522 · Internal Medicine Physician

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH

  • NPI-10 1669682522
  • ENUM-MID 2007
  • TAX-MEGA 175K Internal Medicine
  • MIPS-ABOVE 86.5/100
  • RX-LIGHT 605
  • BOOK-LIGHT 2,683 in Colorado
  • PHOTO-FINISH Lanning Newell, M.D. · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

John Ferguson, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

87 ≥ 49th percentile 49% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where John Ferguson, M.D. sits

This provider among internal medicine physician peers

Across the 34,612 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, John Ferguson, M.D. writes more Part D claims than 49% of them and scores higher on MIPS quality than 49% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 33John Ferguson, M.D., Part D claim volume, percentile in specialty: 49 · MIPS quality, percentile: 49
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is John Ferguson, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

John Ferguson, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about John Ferguson, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 05/22/2007

NPI 1669682522

Primary specialty

Internal Medicine Physician

High-volume

174,792 US NPIs in this specialty

Medicare Part D claims

605 78% vs specialty avg

2024 prescription claims

Specialty avg: 2,785

MIPS final score

86.5/100 3 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Colorado

How Internal Medicine Physician compares to other specialties among Colorado providers

Colorado providers
Behavior Technician8.2%Mental Health Counselor6.1%Clinical Social Worker4.3%Physical Therapist4.2%Professional Counselor3.7%Registered Nurse3.6%Internal Medicine Physician1.8%
Largest specialties in Colorado (% of in-state providers)

Medicare quality performance, MIPS

John Ferguson, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
86.5/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%86.5%
MIPS final score (Internal Medicine Physician) - 86.5/100 vs national avg 83.5
How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Practice Address

8550 W 38TH AVE
Wheat Ridge, CO 80033
(303) 940-1661

Provider Details

NPI 1669682522
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 05/22/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

86.4555
Final Score
Measured-score avg: 83.5
70.2637
Quality
82.375
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where John Ferguson, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Critical Care And Pulmonary Consultants, P.C.
Greenwood Village, CO
Rocky Mountain Pulmonary And Critical
Wheat Ridge, CO

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for John Ferguson, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$4.9K

Largest payer

Medical Device Business Services, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

John Ferguson, M.D. - brand share 45.0%
Internal Medicine Physician average

45% brand-name claims vs 55% generic, on 605 2024 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

605
Total Claims
$200K
Total Drug Cost
145
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
960.767
Total Day Supply
26,348
Brand vs Generic
45% brand / 55% generic
Brand Drug Cost
$191K
Generic Drug Cost
$8K
Antibiotic Claims
78

Patient Demographics

Average Patient Age
76.2 years
Avg HCC Risk Score
2.12
Gender Split
59% female / 41% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What John Ferguson, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Symbicort
Budesonide/Formoterol Fumarate
75
Prednisone
 51
Montelukast Sodium
 46
Albuterol Sulfate Hfa
Albuterol Sulfate
42
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
37
Azithromycin
 31
Anoro Ellipta
Umeclidinium Brm/Vilanterol Tr
26
Advair Hfa
Fluticasone Propion/Salmeterol
21
Breo Ellipta
Fluticasone/Vilanterol
19
Doxycycline Hyclate
 17

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Internal Medicine Physician in CO → All providers in Colorado → Compare specialties →

Internal Medicine Physician Overview

How John Ferguson, M.D. fits within the Internal Medicine Physician landscape nationally.

174,792
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,785
Avg Claims per Provider

John Ferguson, M.D.'s 605 claims are below the specialty average of 2,785.

Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Ferguson, both outside Colorado so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (86.5 here).

Lanning Newell 86.5 NC Kathryn Driza 86.4 MI Adam Edlund 86.4 MI Kavitha Golipelly 86.4 MI

Same NPPES enumeration year (2007)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Lawrence Marinari Bryn Mawr, PA Sailesh Harwani Iowa City, IA Erin Arthur Saint Louis, MO Lillian Nelson Shreveport, LA

Nearby Internal Medicine Physician Providers in Colorado

Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Ferguson.

One of 2,683 Internal Medicine Physician providers enrolled in Colorado, 11 are shown on this page.

Dr. Lon Abney
MD
Durango, CO
Dr. Alan Aboaf
MD
Centennial, CO
Dr. Adam Abraham
MD
Aurora, CO
Dr. Phebe Abraham
MD
Greeley, CO
Dr. Alexander Abramowicz
M.D.
Aurora, CO

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is John Ferguson, M.D.'s specialty? ▼
John Ferguson, M.D. specializes in Internal Medicine Physician and practices in Wheat Ridge, Colorado. Credentials: M.D..
How much does John Ferguson, M.D. prescribe under Medicare Part D? ▼
In 2024, John Ferguson, M.D. wrote 605 Medicare Part D claims totaling $200K in drug costs for 145 beneficiaries.
What is John Ferguson, M.D.'s Medicare quality score? ▼
John Ferguson, M.D. has a CMS MIPS Final Score of 86.5/100 (Quality: 70.3, Cost: 82.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is John Ferguson, M.D. located? ▼
John Ferguson, M.D. is located at 8550 W 38TH AVE, Wheat Ridge, CO, 80033. Phone: (303) 940-1661.
What is John Ferguson, M.D.'s NPI number? ▼
John Ferguson, M.D.'s National Provider Identifier (NPI) is 1669682522, issued on 05/22/2007.
Does John Ferguson, M.D. prescribe more brand-name or generic drugs? ▼
John Ferguson, M.D.'s prescribing is 45% brand-name and 55% generic drugs by claim count, with $191K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 174,792 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,785 Medicare Part D claims per year.
What drugs does John Ferguson, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, John Ferguson, M.D.'s most frequently prescribed drugs include Symbicort, Prednisone, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Ferguson, M.D. accept Medicare? ▼
John Ferguson, M.D. appears in CMS Medicare data with 605 Part D claims and 145 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Ferguson, M.D.'s credentials? ▼
John Ferguson, M.D.'s NPI is 1669682522 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.