Ziyad Hannon, M.D.
NPI 1942206560 · Obstetrics & Gynecology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ziyad Hannon, M.D. is a Obstetrics & Gynecology Physician provider in San Francisco, CA (NPI 1942206560).
Provider details
- NPI number
- 1942206560
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- C40187 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
146 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Colorectal Cancer Screening; Fecal Occult Blood Test, Immunoassay, 1-3 SimultaneousG0328 | 54 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 51 | $153 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 21 | $109 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 20 | $198 |
Typical Medicare-allowed amounts for these services range $17–$198 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 46 | 20 |
| Estradiol | 19 | — |
| Valacyclovir Hclbrand: Valacyclovir | 18 | — |
| Medroxyprogesterone Acetate | 16 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 15 | — |
| Estradiolbrand: Estradiol (once Weekly) | 12 | — |
| Atorvastatin Calcium | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-28
- Last updated
- 2008-03-24
Frequently asked questions
- What is Ziyad Hannon's NPI number?
- Ziyad Hannon's National Provider Identifier (NPI) is 1942206560, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ziyad Hannon's specialty?
- Ziyad Hannon is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ziyad Hannon located?
- Ziyad Hannon's practice location on file with NPPES is 2645 Ocean Ave, San Francisco, CA 94132-1647.
- What is Ziyad Hannon's phone number?
- The practice phone number listed in the NPPES registry for Ziyad Hannon is (415) 334-0999.
- Does Ziyad Hannon accept Medicare?
- Ziyad Hannon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ziyad Hannon's NPI active?
- Yes — Ziyad Hannon's NPI (1942206560) is active in the NPPES registry as of the last update on 2008-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.