2026 NPPES data Reproductive Endocrinology Physician NPI 1245332477 M.D.
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FREDERICK WEINSTEIN, M.D.

Reproductive Endocrinology Physician in TOWSON, Maryland. 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
90
Medicare Part D claims · Reproductive Endocrinology Physician avg: 104
What the federal data reveals: FREDERICK WEINSTEIN, M.D. is a Reproductive Endocrinology Physician ([object Object]) practicing in TOWSON, Maryland with a Medicare Part D prescribing footprint of 90 claims .

What the federal data shows

FREDERICK WEINSTEIN, M.D. filed 90 Medicare Part D claims in 2023 as a Reproductive Endocrinology Physician in TOWSON, Maryland.

90
Part D claims, 2023

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.

Board-eligible specialty (heuristic — not verified)

FREDERICK WEINSTEIN, 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).

FREDERICK WEINSTEIN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 09/01/2006

NPI 1245332477

Primary specialty

Reproductive Endocrinology Physician

Niche

1,413 US NPIs in this specialty

Medicare Part D claims

90 13% vs specialty avg

2023 prescription claims

Specialty avg: 104

Specialty distribution in Maryland

How Reproductive Endocrinology Physician compares to other specialties among Maryland providers

Maryland providers

Reproductive Endocrinology Physician share within Maryland

1. Reproductive Endocrinology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Reproductive Endocrinology Physician share within Maryland

Specialty board-certification context

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

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

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

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

FREDERICK WEINSTEIN, M.D. is a Reproductive Endocrinology Physician provider practicing in TOWSON, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1245332477. 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.

FREDERICK WEINSTEIN, M.D. appears in the CMS NPPES registry as a Reproductive Endocrinology Physician provider holding M.D. credentials at 110 WEST RD, TOWSON, MD, 21204, with a listed phone of (443) 418-5999. NPI 1245332477 was issued on 09/01/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WEINSTEIN 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 90 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $39K in drug spend. 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.

Reproductive Endocrinology Physician is a narrow specialty nationwide, with 1,413 enrolled providers across 48 states and an average of 104 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

110 WEST RD
TOWSON, MD 21204

Provider Details

NPI 1245332477
Specialty Reproductive Endocrinology Physician
Credentials M.D.
Gender Male
NPI Issued 09/01/2006

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

90
Total Claims
$39K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
250
Total Day Supply
7,495
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
76.0 years
Avg HCC Risk Score
0.76

Reproductive Endocrinology Physician Overview

How FREDERICK WEINSTEIN, M.D. fits within the Reproductive Endocrinology Physician landscape nationally.

1,413
Reproductive Endocrinology Physician Providers in US
48
States with Reproductive Endocrinology Physician
104
Avg Claims per Provider

FREDERICK WEINSTEIN, M.D.'s 90 claims are below the specialty average of 104.

Nearby Reproductive Endocrinology Physician Providers in Maryland

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

Compare Reproductive Endocrinology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is FREDERICK WEINSTEIN, M.D.'s specialty?
FREDERICK WEINSTEIN, M.D. specializes in Reproductive Endocrinology Physician and practices in TOWSON, Maryland. Credentials: M.D..
How much does FREDERICK WEINSTEIN, M.D. prescribe under Medicare Part D?
In 2023, FREDERICK WEINSTEIN, M.D. wrote 90 Medicare Part D claims totaling $39K in drug costs for N/A beneficiaries.
Where is FREDERICK WEINSTEIN, M.D. located?
FREDERICK WEINSTEIN, M.D. is located at 110 WEST RD, TOWSON, MD, 21204. Phone: (443) 418-5999.
What is FREDERICK WEINSTEIN, M.D.'s NPI number?
FREDERICK WEINSTEIN, M.D.'s National Provider Identifier (NPI) is 1245332477, issued on 09/01/2006.
How many Reproductive Endocrinology Physician providers are there in the US?
There are 1,413 Reproductive Endocrinology Physician providers across 48 states in the US. The average Reproductive Endocrinology Physician provider writes 104 Medicare Part D claims per year.
Does FREDERICK WEINSTEIN, M.D. accept Medicare?
FREDERICK WEINSTEIN, M.D. appears in CMS Medicare data with 90 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify FREDERICK WEINSTEIN, M.D.'s credentials?
FREDERICK WEINSTEIN, M.D.'s NPI is 1245332477 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