2026 NPPES data Internal Medicine Physician NPI 1093702953 MD
Verify on CMS →

DONALD BROWN, MD

Internal Medicine Physician in IOWA CITY, Iowa. 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
444
Medicare Part D claims · 61 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
80.714/100
▼ 2 pts below national avg 83.1 · [object Object]

What the federal data shows

DONALD BROWN, MD reported a CMS MIPS final score of 80.714/100 — below the 83.1 national average — and filed 444 Medicare Part D claims in 2023.

80.714/100
MIPS score · -2 vs avg
444
Part D claims, 2023
89%
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.

DONALD BROWN, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

81 33rd percentile higher than 33% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

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

Board certification likely (heuristic — not verified)

DONALD BROWN, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 DONALD BROWN, MD?

Near national average

NPI registry status

Active

Issued 10/05/2005

NPI 1093702953

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

444 84% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

80.714/100 2.3859999999999957% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Iowa

How Internal Medicine Physician compares to other specialties among Iowa providers

Iowa providers

Internal Medicine Physician share within Iowa

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

Medicare quality performance — MIPS

DONALD BROWN, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Near national average
MIPS Final Score
80.714/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 80.714/100 vs national avg 83.1

0%100%National avg83%80.7%
MIPS final score (Internal Medicine Physician) — 80.714/100 vs national avg 83.1

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).

DONALD BROWN, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 200 HAWKINS DR, IOWA CITY, IA, 52242, with a listed phone of (319) 356-3414. NPI 1093702953 was issued on 10/05/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BROWN 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 444 prescription claims written by this provider, covering 61 Medicare beneficiaries and totaling roughly $32K in drug spend, split 11% brand-name and 89% generic by claim count. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 80.714/100 for the 2023 performance year (Quality 84.7706, Cost 57.6094), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

200 HAWKINS DR
IOWA CITY, IA 52242

Provider Details

NPI 1093702953
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 10/05/2005

CMS Quality Score (MIPS)

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

80.714
Final Score
Avg: 83.1
84.7706
Quality
57.6094
Cost
92
Promoting Interoperability

Reporting: Group practice

Brand vs generic prescribing mix · Typical

DONALD BROWN, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 444 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.

444
Total Claims
$32K
Total Drug Cost
61
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,014
Total Day Supply
30,283
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$23K
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
76.1 years
Avg HCC Risk Score
1.36
Gender Split
36% female / 64% male

Top Prescribed Drugs (Medicare Part D)

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

What DONALD BROWN, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
76
Lisinopril
51
Ezetimibe
47
Metoprolol Succinate
28
Furosemide
27
Metoprolol Tartrate
25
Carvedilol
22
Potassium Chloride
20
Amlodipine Besylate
19
Hydrochlorothiazide
16

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

Internal Medicine Physician Overview

How DONALD BROWN, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

DONALD BROWN, MD's 444 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Iowa

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

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

Frequently Asked Questions

What is DONALD BROWN, MD's specialty?
DONALD BROWN, MD specializes in Internal Medicine Physician and practices in IOWA CITY, Iowa. Credentials: MD.
How much does DONALD BROWN, MD prescribe under Medicare Part D?
In 2023, DONALD BROWN, MD wrote 444 Medicare Part D claims totaling $32K in drug costs for 61 beneficiaries.
What is DONALD BROWN, MD's Medicare quality score?
DONALD BROWN, MD has a CMS MIPS Final Score of 80.714/100 (Quality: 84.7706, Cost: 57.6094). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DONALD BROWN, MD located?
DONALD BROWN, MD is located at 200 HAWKINS DR, IOWA CITY, IA, 52242. Phone: (319) 356-3414.
What is DONALD BROWN, MD's NPI number?
DONALD BROWN, MD's National Provider Identifier (NPI) is 1093702953, issued on 10/05/2005.
Does DONALD BROWN, MD prescribe more brand-name or generic drugs?
DONALD BROWN, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $23K in brand drug costs.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does DONALD BROWN, MD prescribe most often?
Based on 2023 Medicare Part D data, DONALD BROWN, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Ezetimibe. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DONALD BROWN, MD accept Medicare?
DONALD BROWN, MD appears in CMS Medicare data with 444 Part D claims and 61 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DONALD BROWN, MD's credentials?
DONALD BROWN, MD's NPI is 1093702953 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.
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 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