2026 NPPES data Rheumatology Physician NPI 1730137613 D.O.
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NANCY BROWN, D.O.

Rheumatology Physician in NORMAN, Oklahoma. 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
704
Medicare Part D claims · 72 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$31.07
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

NANCY BROWN, D.O. filed 704 Medicare Part D claims in 2023 as a Rheumatology Physician in NORMAN, Oklahoma, prescribing 88% generic.

704
Part D claims, 2023
88%
generic prescribing
$31.07
industry payments (Sunshine Act)

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.

NANCY BROWN, D.O.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

704 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board-eligible specialty (heuristic — not verified)

NANCY BROWN, D.O. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about NANCY BROWN, D.O.?

Quality data not reported

NPI registry status

Active

Issued 05/04/2006

NPI 1730137613

Primary specialty

Rheumatology Physician

Mid-sized

6,181 US NPIs in this specialty

Medicare Part D claims

704 66% vs specialty avg

2023 prescription claims

Specialty avg: 2,054

Specialty distribution in Oklahoma

How Rheumatology Physician compares to other specialties among Oklahoma providers

Oklahoma providers

Rheumatology Physician share within Oklahoma

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Rheumatology 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).

NANCY BROWN, D.O. appears in the CMS NPPES registry as a Rheumatology Physician provider holding D.O. credentials at 2424 SPRINGER DR STE 107, NORMAN, OK, 73069, with a listed phone of (405) 364-8501. NPI 1730137613 was issued on 05/04/2006. 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 704 prescription claims written by this provider, covering 72 Medicare beneficiaries and totaling roughly $548K in drug spend, split 12% brand-name and 88% 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.

Rheumatology Physician is a mid-sized specialty nationwide, with 6,181 enrolled providers across 52 states and an average of 2,054 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

2424 SPRINGER DR STE 107
NORMAN, OK 73069

Provider Details

NPI 1730137613
Specialty Rheumatology Physician
Credentials D.O.
Gender Female
NPI Issued 05/04/2006

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 NANCY BROWN, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$31

Largest payer

Amgen 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 · Typical

NANCY BROWN, D.O. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 704 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.

704
Total Claims
$548K
Total Drug Cost
72
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,285
Total Day Supply
37,455
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$526K
Generic Drug Cost
$22K

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
1.66
Gender Split
68% female / 32% male

Top Prescribed Drugs (Medicare Part D)

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

What NANCY BROWN, D.O. 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
Methotrexate
Methotrexate Sodium
271
Prednisone
54
Hydroxychloroquine Sulfate
46
Gabapentin
35
Meloxicam
32
Enbrel Sureclick
Etanercept
31
Allopurinol
28
Enbrel
Etanercept
21
Folic Acid
21
Enbrel Mini
Etanercept
16

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

Rheumatology Physician Overview

How NANCY BROWN, D.O. fits within the Rheumatology Physician landscape nationally.

6,181
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider

NANCY BROWN, D.O.'s 704 claims are below the specialty average of 2,054.

Nearby Rheumatology Physician Providers in Oklahoma

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

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

Frequently Asked Questions

What is NANCY BROWN, D.O.'s specialty?
NANCY BROWN, D.O. specializes in Rheumatology Physician and practices in NORMAN, Oklahoma. Credentials: D.O..
How much does NANCY BROWN, D.O. prescribe under Medicare Part D?
In 2023, NANCY BROWN, D.O. wrote 704 Medicare Part D claims totaling $548K in drug costs for 72 beneficiaries.
Where is NANCY BROWN, D.O. located?
NANCY BROWN, D.O. is located at 2424 SPRINGER DR STE 107, NORMAN, OK, 73069. Phone: (405) 364-8501.
What is NANCY BROWN, D.O.'s NPI number?
NANCY BROWN, D.O.'s National Provider Identifier (NPI) is 1730137613, issued on 05/04/2006.
Does NANCY BROWN, D.O. prescribe more brand-name or generic drugs?
NANCY BROWN, D.O.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $526K in brand drug costs.
How many Rheumatology Physician providers are there in the US?
There are 6,181 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does NANCY BROWN, D.O. prescribe most often?
Based on 2023 Medicare Part D data, NANCY BROWN, D.O.'s most frequently prescribed drugs include Methotrexate, Prednisone, Hydroxychloroquine Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NANCY BROWN, D.O. accept Medicare?
NANCY BROWN, D.O. appears in CMS Medicare data with 704 Part D claims and 72 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NANCY BROWN, D.O.'s credentials?
NANCY BROWN, D.O.'s NPI is 1730137613 with credentials D.O.. 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