William Zammarrelli, M.D.
NPI 1588027577 · Gynecologic Oncology Physician · Fort Sam Houston, TX
Enrolled with Medicare as Order and Referring Only - Gynecological Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Zammarrelli, M.D. is a Gynecologic Oncology Physician provider in Fort Sam Houston, TX (NPI 1588027577).
Provider details
- NPI number
- 1588027577
- Entity type
- Individual
- Primary specialty
- Gynecologic Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2318436 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,178 across 15 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1100 Wilford Hall LoopJbsa Lackland, TX 78236-5638Phone: (210) 292-4277
Registry dates
- Enumerated
- 2016-03-29
- Last updated
- 2024-11-12
- Certified
- 2024-11-12
Frequently asked questions
- What is William Zammarrelli's NPI number?
- William Zammarrelli's National Provider Identifier (NPI) is 1588027577, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Zammarrelli's specialty?
- William Zammarrelli is listed in the NPPES registry with a primary specialty of Gynecologic Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is William Zammarrelli located?
- William Zammarrelli's practice location on file with NPPES is Brooke Army Medical Center, Fort Sam Houston, TX 78234.
- What is William Zammarrelli's phone number?
- The practice phone number listed in the NPPES registry for William Zammarrelli is (210) 916-4141.
- Does William Zammarrelli accept Medicare?
- William Zammarrelli is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Zammarrelli's NPI active?
- Yes — William Zammarrelli's NPI (1588027577) is active in the NPPES registry as of the last update on 2024-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.