2026 NPPES data Nephrology Physician NPI 1396842878 M.D.
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ADAM WEINSTEIN, M.D.

Nephrology Physician in EASTON, 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
361
Medicare Part D claims · 62 beneficiaries · Nephrology Physician avg: 1K

What the federal data shows

ADAM WEINSTEIN, M.D. filed 361 Medicare Part D claims in 2023 as a Nephrology Physician in EASTON, Maryland.

361
Part D claims, 2023
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.

ADAM WEINSTEIN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

361 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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 certification likely (heuristic — not verified)

ADAM WEINSTEIN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — 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 ADAM WEINSTEIN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 09/19/2006

NPI 1396842878

Primary specialty

Nephrology Physician

Mid-sized

10,534 US NPIs in this specialty

Medicare Part D claims

361 75% vs specialty avg

2023 prescription claims

Specialty avg: 1,454

Specialty distribution in Maryland

How Nephrology Physician compares to other specialties among Maryland providers

Maryland providers

Nephrology Physician share within Maryland

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

Specialty board-certification context

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

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

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

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

ADAM WEINSTEIN, M.D. appears in the CMS NPPES registry as a Nephrology Physician provider holding M.D. credentials at 5 MARTIN COURT, EASTON, MD, 21601, with a listed phone of (410) 820-9823. NPI 1396842878 was issued on 09/19/2006. 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 361 prescription claims written by this provider, covering 62 Medicare beneficiaries and totaling roughly $106K 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.

Nephrology Physician is a mid-sized specialty nationwide, with 10,534 enrolled providers across 55 states and an average of 1,454 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

5 MARTIN COURT
EASTON, MD 21601

Provider Details

NPI 1396842878
Specialty Nephrology Physician
Credentials M.D.
Gender Male
NPI Issued 09/19/2006

Hospital and facility affiliations

Facilities where ADAM WEINSTEIN, 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.

UNIVERSITY OF MARYLAND COMMUNITY MEDICAL GROUP INC
CAMBRIDGE, MD

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

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

361
Total Claims
$106K
Total Drug Cost
62
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
864
Total Day Supply
25,642
Generic Drug Cost
$11K

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
1.93
Gender Split
37% female / 63% male

Top Prescribed Drugs (Medicare Part D)

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

What ADAM WEINSTEIN, M.D. 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
Jardiance
Empagliflozin
58
Losartan Potassium
44
Allopurinol
25
Furosemide
25
Carvedilol
22
Calcitriol
18
Amlodipine Besylate
15
Farxiga
Dapagliflozin Propanediol
14
Cinacalcet Hcl
12
Invokana
Canagliflozin
11

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

Nephrology Physician Overview

How ADAM WEINSTEIN, M.D. fits within the Nephrology Physician landscape nationally.

10,534
Nephrology Physician Providers in US
55
States with Nephrology Physician
1,454
Avg Claims per Provider

ADAM WEINSTEIN, M.D.'s 361 claims are below the specialty average of 1,454.

Nearby Nephrology Physician Providers in Maryland

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

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

Frequently Asked Questions

What is ADAM WEINSTEIN, M.D.'s specialty?
ADAM WEINSTEIN, M.D. specializes in Nephrology Physician and practices in EASTON, Maryland. Credentials: M.D..
How much does ADAM WEINSTEIN, M.D. prescribe under Medicare Part D?
In 2023, ADAM WEINSTEIN, M.D. wrote 361 Medicare Part D claims totaling $106K in drug costs for 62 beneficiaries.
Where is ADAM WEINSTEIN, M.D. located?
ADAM WEINSTEIN, M.D. is located at 5 MARTIN COURT, EASTON, MD, 21601. Phone: (410) 820-9823.
What is ADAM WEINSTEIN, M.D.'s NPI number?
ADAM WEINSTEIN, M.D.'s National Provider Identifier (NPI) is 1396842878, issued on 09/19/2006.
How many Nephrology Physician providers are there in the US?
There are 10,534 Nephrology Physician providers across 55 states in the US. The average Nephrology Physician provider writes 1,454 Medicare Part D claims per year.
What drugs does ADAM WEINSTEIN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ADAM WEINSTEIN, M.D.'s most frequently prescribed drugs include Jardiance, Losartan Potassium, Allopurinol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ADAM WEINSTEIN, M.D. accept Medicare?
ADAM WEINSTEIN, M.D. appears in CMS Medicare data with 361 Part D claims and 62 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ADAM WEINSTEIN, M.D.'s credentials?
ADAM WEINSTEIN, M.D.'s NPI is 1396842878 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