2026 NPPES data Family Medicine Physician NPI 1770103657 MD
Verify on CMS →

NIGEL BARNER, MD

Family Medicine Physician in GOLDEN, Colorado. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
652
Medicare Part D claims · 245 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: NIGEL BARNER, MD is a Family Medicine Physician ([object Object]) practicing in GOLDEN, Colorado with a Medicare Part D prescribing footprint of 652 claims across 245 beneficiaries — 9% brand-name prescribing .

What stands out: NIGEL BARNER, MD filed 652 Medicare Part D claims in 2023 across GOLDEN, Colorado. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NIGEL BARNER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NIGEL BARNER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 04/21/2020

NPI 1770103657

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

652 81% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Colorado

How Family Medicine Physician compares to other specialties among Colorado providers

Colorado providers

Family Medicine Physician share within Colorado

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Colorado

Specialty board-certification context

Estimated specialty board-certified rate — Family Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Medicine Physician) — ABMS / AOA estimate

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).

NIGEL BARNER, MD is a Family Medicine Physician provider practicing in GOLDEN, Colorado, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1770103657. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

NIGEL BARNER, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1030 JOHNSON RD STE 200, GOLDEN, CO, 80401, with a listed phone of (303) 278-4600. NPI 1770103657 was issued on 04/21/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARNER most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 652 prescription claims written by this provider, covering 245 Medicare beneficiaries and totaling roughly $50K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 6.7%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1030 JOHNSON RD STE 200
GOLDEN, CO 80401

Provider Details

NPI 1770103657
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 04/21/2020

Hospital and facility affiliations

Facilities where NIGEL BARNER, MD 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.

OPTUMCARE COLORADO MEDICAL GROUP LLC
GOLDEN, 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).

Brand vs generic prescribing mix · Generic-heavy

NIGEL BARNER, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 652 2023 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 2023.

652
Total Claims
$50K
Total Drug Cost
245
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,352
Total Day Supply
38,056
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$32K
Generic Drug Cost
$17K
Opioid Claims
44 (6.7% rate)
Antibiotic Claims
36

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.35
Gender Split
38% female / 62% male
Age Distribution
<65: 30, 65-74: 135, 75-84: 68, 85+: 12

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
35
Lisinopril
32
Metformin Hcl
26
Amlodipine Besylate
19
Tamsulosin Hcl
17
Rosuvastatin Calcium
16
Albuterol Sulfate Hfa
Albuterol Sulfate
15
Allopurinol
14
Hydrochlorothiazide
14
Losartan Potassium
14

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

Family Medicine Physician Overview

How NIGEL BARNER, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

NIGEL BARNER, MD's 652 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Colorado

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

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

Frequently Asked Questions

What is NIGEL BARNER, MD's specialty?
NIGEL BARNER, MD specializes in Family Medicine Physician and practices in GOLDEN, Colorado. Credentials: MD.
How much does NIGEL BARNER, MD prescribe under Medicare Part D?
In 2023, NIGEL BARNER, MD wrote 652 Medicare Part D claims totaling $50K in drug costs for 245 beneficiaries.
Where is NIGEL BARNER, MD located?
NIGEL BARNER, MD is located at 1030 JOHNSON RD STE 200, GOLDEN, CO, 80401. Phone: (303) 278-4600.
What is NIGEL BARNER, MD's NPI number?
NIGEL BARNER, MD's National Provider Identifier (NPI) is 1770103657, issued on 04/21/2020.
Does NIGEL BARNER, MD prescribe more brand-name or generic drugs?
NIGEL BARNER, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $32K in brand drug costs.
Does NIGEL BARNER, MD prescribe opioids?
Yes, NIGEL BARNER, MD had 44 opioid claims in 2023 with an opioid prescribing rate of 6.7%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does NIGEL BARNER, MD prescribe most often?
Based on 2023 Medicare Part D data, NIGEL BARNER, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NIGEL BARNER, MD accept Medicare?
NIGEL BARNER, MD appears in CMS Medicare data with 652 Part D claims and 245 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NIGEL BARNER, MD's credentials?
NIGEL BARNER, MD's NPI is 1770103657 with credentials MD. 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

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 (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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 April 2026 (NPPES) / 2023 (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