2026 NPPES data Family Medicine Physician NPI 1982157764 M.D.
Verify on CMS →

DENNIS CULLEN, M.D.

Family Medicine Physician in BETHESDA, 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
621
Medicare Part D claims · 91 beneficiaries · Family Medicine Physician avg: 3K

What the federal data shows

DENNIS CULLEN, M.D. filed 621 Medicare Part D claims in 2023 as a Family Medicine Physician in BETHESDA, Maryland.

621
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.

DENNIS CULLEN, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

621 Top 31% higher than 69% 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 certification likely (heuristic — not verified)

DENNIS CULLEN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 DENNIS CULLEN, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/28/2016

NPI 1982157764

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

621 82% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Maryland

How Family Medicine Physician compares to other specialties among Maryland providers

Maryland providers

Family Medicine Physician share within Maryland

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

Specialty board-certification context

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

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

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

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

DENNIS CULLEN, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 7625 WISCONSIN AVE., BETHESDA, MD, 20814, with a listed phone of (240) 497-1570. NPI 1982157764 was issued on 07/28/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CULLEN 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 621 prescription claims written by this provider, covering 91 Medicare beneficiaries and totaling roughly $44K 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

7625 WISCONSIN AVE.
BETHESDA, MD 20814

Provider Details

NPI 1982157764
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 07/28/2016

Hospital and facility affiliations

Facilities where DENNIS CULLEN, 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.

PRIVIA CARE CENTER LLC
WASHINGTON, DC
SUBURBAN/NRH MEDICAL REHABILITATION INC
BETHESDA, 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.

621
Total Claims
$44K
Total Drug Cost
91
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,554
Total Day Supply
44,946
Generic Drug Cost
$12K
Antibiotic Claims
26

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
0.96
Gender Split
46% female / 54% male

Top Prescribed Drugs (Medicare Part D)

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

What DENNIS CULLEN, 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
Atorvastatin Calcium
62
Amlodipine Besylate
32
Losartan Potassium
20
Lisinopril
19
Levothyroxine Sodium
17
Metoprolol Succinate
17
Hydrochlorothiazide
14
Metformin Hcl
14
Allopurinol
13
Sertraline Hcl
13

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

Family Medicine Physician Overview

How DENNIS CULLEN, M.D. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

DENNIS CULLEN, M.D.'s 621 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Maryland

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

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

Frequently Asked Questions

What is DENNIS CULLEN, M.D.'s specialty?
DENNIS CULLEN, M.D. specializes in Family Medicine Physician and practices in BETHESDA, Maryland. Credentials: M.D..
How much does DENNIS CULLEN, M.D. prescribe under Medicare Part D?
In 2023, DENNIS CULLEN, M.D. wrote 621 Medicare Part D claims totaling $44K in drug costs for 91 beneficiaries.
Where is DENNIS CULLEN, M.D. located?
DENNIS CULLEN, M.D. is located at 7625 WISCONSIN AVE., BETHESDA, MD, 20814. Phone: (240) 497-1570.
What is DENNIS CULLEN, M.D.'s NPI number?
DENNIS CULLEN, M.D.'s National Provider Identifier (NPI) is 1982157764, issued on 07/28/2016.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does DENNIS CULLEN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DENNIS CULLEN, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DENNIS CULLEN, M.D. accept Medicare?
DENNIS CULLEN, M.D. appears in CMS Medicare data with 621 Part D claims and 91 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DENNIS CULLEN, M.D.'s credentials?
DENNIS CULLEN, M.D.'s NPI is 1982157764 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