2026 NPPES data Obstetrics & Gynecology Physician NPI 1972580140 M.D.
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TAHMINA AAFREEN, M.D.

Obstetrics & Gynecology Physician in WATERTOWN, Wisconsin. 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
592
Medicare Part D claims · 322 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: TAHMINA AAFREEN, M.D. is a Obstetrics & Gynecology Physician ([object Object]) practicing in WATERTOWN, Wisconsin with a Medicare Part D prescribing footprint of 592 claims across 322 beneficiaries — 7% brand-name prescribing .

What stands out: TAHMINA AAFREEN, M.D. filed 592 Medicare Part D claims in 2023 across WATERTOWN, Wisconsin. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

TAHMINA AAFREEN, M.D. 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).

TAHMINA AAFREEN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 12/28/2005

NPI 1972580140

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

592 231% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Wisconsin

How Obstetrics & Gynecology Physician compares to other specialties among Wisconsin providers

Wisconsin providers

Obstetrics & Gynecology Physician share within Wisconsin

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology 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).

TAHMINA AAFREEN, M.D. is a Obstetrics & Gynecology Physician provider practicing in WATERTOWN, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1972580140. 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.

TAHMINA AAFREEN, M.D. appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding M.D. credentials at 128 HOSPITAL DR, WATERTOWN, WI, 53098, with a listed phone of (920) 262-4825. NPI 1972580140 was issued on 12/28/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AAFREEN 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 592 prescription claims written by this provider, covering 322 Medicare beneficiaries and totaling roughly $40K in drug spend, split 7% brand-name and 93% 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

128 HOSPITAL DR
WATERTOWN, WI 53098

Provider Details

NPI 1972580140
Specialty Obstetrics & Gynecology Physician
Credentials M.D.
Gender Female
NPI Issued 12/28/2005

Brand vs generic prescribing mix · Generic-heavy

TAHMINA AAFREEN, M.D. — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 592 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.

592
Total Claims
$40K
Total Drug Cost
322
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,367
Total Day Supply
38,946
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$19K
Generic Drug Cost
$21K
Antibiotic Claims
46

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.04
Gender Split
100% female / 0% male
Age Distribution
<65: 39, 65-74: 166, 75-84: 87, 85+: 30

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Estradiol
245
Hydrocortisone
37
Clobetasol Propionate
29
Acyclovir
25
Cephalexin
25
Yuvafem
Estradiol
25
Estring
Estradiol
19
Fluconazole
17
Medroxyprogesterone Acetate
14
Nystatin-Triamcinolone
Nystatin/Triamcinolone Acet
12

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

Obstetrics & Gynecology Physician Overview

How TAHMINA AAFREEN, M.D. fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

TAHMINA AAFREEN, M.D.'s 592 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Wisconsin

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

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is TAHMINA AAFREEN, M.D.'s specialty?
TAHMINA AAFREEN, M.D. specializes in Obstetrics & Gynecology Physician and practices in WATERTOWN, Wisconsin. Credentials: M.D..
How much does TAHMINA AAFREEN, M.D. prescribe under Medicare Part D?
In 2023, TAHMINA AAFREEN, M.D. wrote 592 Medicare Part D claims totaling $40K in drug costs for 322 beneficiaries.
Where is TAHMINA AAFREEN, M.D. located?
TAHMINA AAFREEN, M.D. is located at 128 HOSPITAL DR, WATERTOWN, WI, 53098. Phone: (920) 262-4825.
What is TAHMINA AAFREEN, M.D.'s NPI number?
TAHMINA AAFREEN, M.D.'s National Provider Identifier (NPI) is 1972580140, issued on 12/28/2005.
Does TAHMINA AAFREEN, M.D. prescribe more brand-name or generic drugs?
TAHMINA AAFREEN, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $19K in brand drug costs.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does TAHMINA AAFREEN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, TAHMINA AAFREEN, M.D.'s most frequently prescribed drugs include Estradiol, Hydrocortisone, Clobetasol Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TAHMINA AAFREEN, M.D. accept Medicare?
TAHMINA AAFREEN, M.D. appears in CMS Medicare data with 592 Part D claims and 322 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TAHMINA AAFREEN, M.D.'s credentials?
TAHMINA AAFREEN, M.D.'s NPI is 1972580140 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

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