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2026 NPPES data Internal Medicine Physician NPI 1891715942 M.D.
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Shannon Smiley, M.D.

Internal Medicine Physician in Anchorage, Alaska.

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
911
Medicare Part D claims · 137 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
73%
generic claims · 27% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
65.5/100
▼ 18 pts below national avg 83.5 · Mid-tier
Industry payments
$362.09
12 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

Shannon Smiley, M.D. reported a CMS MIPS final score of 65.5/100 - below the 83.5 national average - and filed 911 Medicare Part D claims in 2024.

65.5/100
MIPS score · -18 vs avg
911
Part D claims, 2024
73%
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 Shannon Smiley, 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 1891715942), first enumerated 07/20/2006.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 911 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 65.5/100 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

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

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $362.09 in reported industry payments (12 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 Smiley with other Internal Medicine Physician providers

Same primary specialty, same federal CMS NPPES roster.

Also enrolled in Alaska

Other specialties in Anchorage: Mental Health Counselor (1,074) · Case Manager/Care Coordinator (808) · Registered Nurse (647) · Behavior Technician (495)

CMS NPPES provider registry desk

NPI 1891715942 · Internal Medicine Physician

NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-LOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1891715942
  • ENUM-LEGACY 2006
  • TAX-MEGA 175K Internal Medicine
  • MIPS-LOW 65.5/100
  • RX-LIGHT 911
  • BOOK-THIN 218 in Alaska
  • PHOTO-FINISH Lia Halasz, 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

Shannon Smiley, 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.

66 ≥ 7th percentile 7% 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%). This entry sits in this band. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 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 Shannon Smiley, 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, Shannon Smiley, M.D. writes more Part D claims than 55% of them and scores higher on MIPS quality than 8% - placing this provider in the high-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: 45Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 50Point, 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: 58Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 15Point, 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: 13Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 55 · 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: 48Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 28Point, 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: 47Point, 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: 27Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 57 · 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: 57Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 23Point, 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: 43Point, 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: 32Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 55Point, 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: 52Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 35Shannon Smiley, M.D., Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 8
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 Shannon Smiley, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Shannon Smiley, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Shannon Smiley, M.D.?

Below national average

NPI registry status

Active

Issued 07/20/2006

NPI 1891715942

Primary specialty

Internal Medicine Physician

High-volume

174,792 US NPIs in this specialty

Medicare Part D claims

911 67% vs specialty avg

2024 prescription claims

Specialty avg: 2,785

MIPS final score

65.5/100 18 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in Alaska

How Internal Medicine Physician compares to other specialties among Alaska providers

Alaska providers
Community Health Worker7.8%Mental Health Counselor7.6%Case Manager/Care Coordinator6.1%Behavior Technician4.8%Registered Nurse4.7%Counselor4.2%Internal Medicine Physician0.8%
Largest specialties in Alaska (% of in-state providers)

Medicare quality performance, MIPS

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

Below national average
MIPS Final Score
65.5/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%65.5%
MIPS final score (Internal Medicine Physician) - 65.5/100 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

3851 PIPER STREET
Anchorage, AK 99508
(907) 562-0321

Provider Details

NPI 1891715942
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 07/20/2006

CMS Quality Score (MIPS)

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

65.4504
Final Score
Measured-score avg: 83.5
74.8346
Quality
10
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Shannon Smiley, 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.

Katmai Oncology Group LLC
Anchorage, AK

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 Shannon Smiley, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$362

Largest payer

Janssen Biotech, 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

Shannon Smiley, M.D. - brand share 27.0%
Internal Medicine Physician average

27% brand-name claims vs 73% generic, on 911 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.

911
Total Claims
$3.9M
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,211.6
Total Day Supply
31,875
Brand vs Generic
27% brand / 73% generic
Brand Drug Cost
$3.5M
Generic Drug Cost
$335K
Opioid Claims
104 (11.4% rate)
Antibiotic Claims
49

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
2.32
Gender Split
50% female / 50% male

Top Prescribed Drugs (Medicare Part D)

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

What Shannon Smiley, 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
Acyclovir
 62
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
39
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
37
Anastrozole
 36
Calquence
Acalabrutinib Maleate
32
Gabapentin
 27
Oxycodone Hcl
 27
Lorazepam
 24
Tamoxifen Citrate
 23
Olanzapine
 21

* 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 AK → All providers in Alaska → Compare specialties →

Internal Medicine Physician Overview

How Shannon Smiley, 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

Shannon Smiley, M.D.'s 911 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 Smiley, both outside Alaska so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (65.5 here).

Lia Halasz 65.5 WA Alexa Rodin 65.5 MT Zachary Smith 65.4 TX Enrico Bravo 65.4 NY

Same NPPES enumeration year (2006)

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

William King Eufaula, AL William Fogarty Saint Louis, MO Morgan Poncy Jupiter, FL Juan Garza San Antonio, TX

Nearby Internal Medicine Physician Providers in Alaska

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

One of 218 Internal Medicine Physician providers enrolled in Alaska, 11 are shown on this page.

Dr. Ashley Barasa
MD
Elmendorf Afb, AK
Dr. Youssef Barbour
MD
Anchorage, AK
Dr. Emily Barkay
MD
Anchorage, AK
Dr. Ido Barkay
M.D
Anchorage, AK
Dr. David Barnes
D.O.
Wasilla, AK

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

Frequently Asked Questions

What is Shannon Smiley, M.D.'s specialty? ▼
Shannon Smiley, M.D. specializes in Internal Medicine Physician and practices in Anchorage, Alaska. Credentials: M.D..
How much does Shannon Smiley, M.D. prescribe under Medicare Part D? ▼
In 2024, Shannon Smiley, M.D. wrote 911 Medicare Part D claims totaling $3.9M in drug costs for 137 beneficiaries.
What is Shannon Smiley, M.D.'s Medicare quality score? ▼
Shannon Smiley, M.D. has a CMS MIPS Final Score of 65.5/100 (Quality: 74.8, Cost: 10). 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 Shannon Smiley, M.D. located? ▼
Shannon Smiley, M.D. is located at 3851 PIPER STREET, Anchorage, AK, 99508. Phone: (907) 562-0321.
What is Shannon Smiley, M.D.'s NPI number? ▼
Shannon Smiley, M.D.'s National Provider Identifier (NPI) is 1891715942, issued on 07/20/2006.
Does Shannon Smiley, M.D. prescribe more brand-name or generic drugs? ▼
Shannon Smiley, M.D.'s prescribing is 27% brand-name and 73% generic drugs by claim count, with $3.5M in brand drug costs.
Does Shannon Smiley, M.D. prescribe opioids? ▼
Yes, Shannon Smiley, M.D. had 104 opioid claims in 2024 with an opioid prescribing rate of 11.4%.
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 Shannon Smiley, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Shannon Smiley, M.D.'s most frequently prescribed drugs include Acyclovir, Hydrocodone-Acetaminophen, Sulfamethoxazole-Trimethoprim. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Shannon Smiley, M.D. accept Medicare? ▼
Shannon Smiley, M.D. appears in CMS Medicare data with 911 Part D claims and 137 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Shannon Smiley, M.D.'s credentials? ▼
Shannon Smiley, M.D.'s NPI is 1891715942 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.