PlainDoctor

2026 NPPES data Dermatology Physician NPI 1235573114 M.D.
Verify on CMS →

Ann Brewer, M.D.

Dermatology Physician in Kalispell, Montana.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,011 in Dermatology 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
238
Medicare Part D claims · 119 beneficiaries · Dermatology Physician avg: 799
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.5 · Above neutral
Industry payments
$1.5K
53 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

Ann Brewer, M.D. reported a CMS MIPS final score of 75/100 - below the 83.5 national average - and filed 238 Medicare Part D claims in 2024.

75/100
MIPS score · -8 vs avg
238
Part D claims, 2024
93%
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 Ann Brewer, 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 1235573114), first enumerated 04/23/2013.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 238 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 75/100 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

    $1.5K in reported industry payments (53 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.

CMS NPPES provider registry desk

NPI 1235573114 · Dermatology Physician

NPI-10 · ENUM-MID · TAX-MID · MIPS-BELOW · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1235573114
  • ENUM-MID 2013
  • TAX-MID 15K Dermatology Physician
  • MIPS-BELOW 75/100
  • RX-LIGHT 238
  • BOOK-THIN 56 in Montana
  • PHOTO-FINISH Erin Adams · ±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

Ann Brewer, 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.

75 ≥ 15th percentile 15% 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%). This entry sits in this band. 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 Ann Brewer, M.D. sits

This provider among dermatology physician peers

Across the 5,700 dermatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ann Brewer, M.D. writes more Part D claims than 15% of them and scores higher on MIPS quality than 19% - 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 quality0255075100023.647.370.994.5Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 48Ann Brewer, M.D., Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 19
Part D claim volume vs MIPS quality, by specialty percentile

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

✓
Board certification likely (heuristic, not verified)

Ann Brewer, 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 Ann Brewer, M.D.?

Below national average

NPI registry status

Active

Issued 04/23/2013

NPI 1235573114

Primary specialty

Dermatology Physician

Mid-sized

15,011 US NPIs in this specialty

Medicare Part D claims

238 70% vs specialty avg

2024 prescription claims

Specialty avg: 799

MIPS final score

75/100 8.5 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Montana

How Dermatology Physician compares to other specialties among Montana providers

Montana providers
Clinical Social Worker6.4%Physical Therapist6.4%Mental Health Counselor5.1%Pharmacist5%Professional Counselor4.3%Addiction (Substance Use Dis…4.2%Dermatology Physician0.3%
Largest specialties in Montana (% of in-state providers)

Medicare quality performance, MIPS

Ann Brewer, M.D.'s 2023 MIPS final score plotted against the Dermatology Physician national average

Below national average
MIPS Final Score
75/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%75%
MIPS final score (Dermatology Physician) - 75/100 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

175 COMMONS LOOP STE 300
Kalispell, MT 59901
(406) 756-7555

Provider Details

NPI 1235573114
Specialty Dermatology Physician
Credentials M.D.
Gender Female
NPI Issued 04/23/2013

CMS Quality Score (MIPS)

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

75.0287
Final Score
Measured-score avg: 83.5
90.941
Quality
28.841
Cost

Reporting: Group practice

Hospital and facility affiliations

Facilities where Ann Brewer, 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.

Ann C Brewer MD Inc
Makawao, HI
Hana Health
Hana, HI

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 Ann Brewer, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.5K

Largest payer

ABBVIE 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 · Generic-heavy

Ann Brewer, M.D. - brand share 7.0%
Dermatology Physician average

7% brand-name claims vs 93% generic, on 238 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.

238
Total Claims
$93K
Total Drug Cost
119
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
260.7
Total Day Supply
6,590
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$86K
Generic Drug Cost
$8K
Antibiotic Claims
12

Patient Demographics

Average Patient Age
73.2 years
Avg HCC Risk Score
1.06
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 Ann Brewer, 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
Fluorouracil
 28
Ketoconazole
 26
Hydrocortisone
 23
Mupirocin
 23
Triamcinolone Acetonide
 21
Clobetasol Propionate
 17
Rinvoq
Upadacitinib
12

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

More Dermatology Physician in MT → All providers in Montana → Compare specialties →

Dermatology Physician Overview

How Ann Brewer, M.D. fits within the Dermatology Physician landscape nationally.

15,011
Dermatology Physician Providers in US
53
States with Dermatology Physician
799
Avg Claims per Provider

Ann Brewer, M.D.'s 238 claims are below the specialty average of 799.

Nationwide Dermatology Physician peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (75 here).

Erin Adams 75 VA Yvette Appiah 75 VA Nasir Aziz 75 VA Rebecca Barry 75 VA

Same NPPES enumeration year (2013)

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

Andrew Kim Concord, NH Sarah Tonelli Glen Mills, PA Courtney Bagayoko Anchorage, AK Mahsa Amir Parker, CO

Nearby Dermatology Physician Providers in Montana

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

One of 56 Dermatology Physician providers enrolled in Montana, 5 are shown here.

Dr. Stephen Behlmer
MD
Helena, MT
Dr. Brett Bender
D.O.
Bozeman, MT
Dr. Kimberly Blain
MD
Billings, MT
Dr. Aaron Bruce
D.O.
Bozeman, MT
Dr. Molly Buckland
D.O.
Bozeman, MT

Compare Dermatology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is Ann Brewer, M.D.'s specialty? ▼
Ann Brewer, M.D. specializes in Dermatology Physician and practices in Kalispell, Montana. Credentials: M.D..
How much does Ann Brewer, M.D. prescribe under Medicare Part D? ▼
In 2024, Ann Brewer, M.D. wrote 238 Medicare Part D claims totaling $93K in drug costs for 119 beneficiaries.
What is Ann Brewer, M.D.'s Medicare quality score? ▼
Ann Brewer, M.D. has a CMS MIPS Final Score of 75/100 (Quality: 90.9, Cost: 28.8). 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 Ann Brewer, M.D. located? ▼
Ann Brewer, M.D. is located at 175 COMMONS LOOP STE 300, Kalispell, MT, 59901. Phone: (406) 756-7555.
What is Ann Brewer, M.D.'s NPI number? ▼
Ann Brewer, M.D.'s National Provider Identifier (NPI) is 1235573114, issued on 04/23/2013.
Does Ann Brewer, M.D. prescribe more brand-name or generic drugs? ▼
Ann Brewer, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $86K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 15,011 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 799 Medicare Part D claims per year.
What drugs does Ann Brewer, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ann Brewer, M.D.'s most frequently prescribed drugs include Fluorouracil, Ketoconazole, Hydrocortisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Brewer, M.D. accept Medicare? ▼
Ann Brewer, M.D. appears in CMS Medicare data with 238 Part D claims and 119 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Brewer, M.D.'s credentials? ▼
Ann Brewer, M.D.'s NPI is 1235573114 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.