2026 NPPES data Gynecology Physician NPI 1770573891 M.D.
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WILLIAM DELAPAZ, M.D.

Gynecology Physician in WALDORF, 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
41
Medicare Part D claims · 13 beneficiaries · Gynecology Physician avg: 295
MIPS score
80.1797/100
▼ 3 pts below national avg 83.1 · [object Object]
What the federal data reveals: WILLIAM DELAPAZ, M.D. is a Gynecology Physician ([object Object]) practicing in WALDORF, Maryland with a Medicare Part D prescribing footprint of 41 claims across 13 beneficiaries . Their CMS MIPS Final Score of 80.1797/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: WILLIAM DELAPAZ, M.D. reported a CMS MIPS final score of 80.1797 out of 100, below the 83.1 national average, and filed 41 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

WILLIAM DELAPAZ, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

WILLIAM DELAPAZ, M.D. at a glance

Near national average

NPI registry status

Active

Issued 10/28/2005

NPI 1770573891

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

41 86% vs specialty avg

2023 prescription claims

Specialty avg: 295

MIPS final score

80.1797/100 2.9202999999999975% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Maryland

How Gynecology Physician compares to other specialties among Maryland providers

Maryland providers

Gynecology Physician share within Maryland

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

Medicare quality performance — MIPS

WILLIAM DELAPAZ, M.D.'s 2023 MIPS final score plotted against the Gynecology Physician national average

Near national average
MIPS Final Score
80.1797/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gynecology Physician) — 80.1797/100 vs national avg 83.1

0%100%National avg83%80.2%
MIPS final score (Gynecology Physician) — 80.1797/100 vs national avg 83.1

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).

WILLIAM DELAPAZ, M.D. is a Gynecology Physician provider practicing in WALDORF, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1770573891. 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.

WILLIAM DELAPAZ, M.D. appears in the CMS NPPES registry as a Gynecology Physician provider holding M.D. credentials at 11340 PEMBROOKE SQ, WALDORF, MD, 20603, with a listed phone of (301) 843-7737. NPI 1770573891 was issued on 10/28/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DELAPAZ 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 41 prescription claims written by this provider, covering 13 Medicare beneficiaries and totaling roughly $1K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 80.1797/100 for the 2023 performance year (Quality 76.6904, Cost 53.4937), compared with the national average of 83.1.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 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

11340 PEMBROOKE SQ
WALDORF, MD 20603

Provider Details

NPI 1770573891
Specialty Gynecology Physician
Credentials M.D.
Gender Male
NPI Issued 10/28/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

80.1797
Final Score
Avg: 83.1
76.6904
Quality
53.4937
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where WILLIAM DELAPAZ, 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.

MEDSTAR MEDICAL GROUP II LLC
CHARLOTTE HALL, 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.

41
Total Claims
$1K
Total Drug Cost
13
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
64
Total Day Supply
1,374
Generic Drug Cost
$1K

Patient Demographics

Average Patient Age
65.5 years
Avg HCC Risk Score
1.01
Gender Split
100% female / 0% male

Gynecology Physician Overview

How WILLIAM DELAPAZ, M.D. fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

WILLIAM DELAPAZ, M.D.'s 41 claims are below the specialty average of 295.

Nearby Gynecology Physician Providers in Maryland

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

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

Frequently Asked Questions

What is WILLIAM DELAPAZ, M.D.'s specialty?
WILLIAM DELAPAZ, M.D. specializes in Gynecology Physician and practices in WALDORF, Maryland. Credentials: M.D..
How much does WILLIAM DELAPAZ, M.D. prescribe under Medicare Part D?
In 2023, WILLIAM DELAPAZ, M.D. wrote 41 Medicare Part D claims totaling $1K in drug costs for 13 beneficiaries.
What is WILLIAM DELAPAZ, M.D.'s Medicare quality score?
WILLIAM DELAPAZ, M.D. has a CMS MIPS Final Score of 80.1797/100 (Quality: 76.6904, Cost: 53.4937). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WILLIAM DELAPAZ, M.D. located?
WILLIAM DELAPAZ, M.D. is located at 11340 PEMBROOKE SQ, WALDORF, MD, 20603. Phone: (301) 843-7737.
What is WILLIAM DELAPAZ, M.D.'s NPI number?
WILLIAM DELAPAZ, M.D.'s National Provider Identifier (NPI) is 1770573891, issued on 10/28/2005.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
Does WILLIAM DELAPAZ, M.D. accept Medicare?
WILLIAM DELAPAZ, M.D. appears in CMS Medicare data with 41 Part D claims and 13 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM DELAPAZ, M.D.'s credentials?
WILLIAM DELAPAZ, M.D.'s NPI is 1770573891 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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