Gregory Melcher, MD
NPI 1508846387 · Infectious Disease Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Melcher, MD is a Infectious Disease Physician provider in San Francisco, CA (NPI 1508846387).
Provider details
- NPI number
- 1508846387
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 00G869540 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 995 Potrero AvenueBldg. 80, Ward 86, Fl. 6San Francisco, CA 94110-3518Phone: (628) 206-2400
Registry dates
- Enumerated
- 2006-01-18
- Last updated
- 2022-07-05
- Certified
- 2022-07-05
Frequently asked questions
- What is Gregory Melcher's NPI number?
- Gregory Melcher's National Provider Identifier (NPI) is 1508846387, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Melcher's specialty?
- Gregory Melcher is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Melcher located?
- Gregory Melcher's practice location on file with NPPES is 518a Castro St, San Francisco, CA 94114-2512.
- What is Gregory Melcher's phone number?
- The practice phone number listed in the NPPES registry for Gregory Melcher is (415) 552-2814.
- Does Gregory Melcher accept Medicare?
- Gregory Melcher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Melcher's NPI active?
- Yes — Gregory Melcher's NPI (1508846387) is active in the NPPES registry as of the last update on 2022-07-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.