MS. MELICENT CLARE PECK M.D., PHD
NPI 1033388269
Internal Medicine - Infectious Disease in San Francisco, CA
About Ms. Melicent Clare Peck M.d., Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. MELICENT CLARE PECK M.D., PHD (NPI 1033388269) is an individual infectious disease provider in San Francisco, California, licensed in California (A105023) and active in the NPI registry since February 2008. She is enrolled in Medicare PECOS and is a graduate of Stanford University School Of Medicine (2007).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Melicent Clare Peck M.d., Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Melicent Peck reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
Palo Alto, CA 94306
- Reassigned Medicare billing, California enrollment
- 2,460 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Melicent Peck's NPI number?
The NPI number for Melicent Peck is 1033388269. It was assigned to this individual provider in the NPPES registry on February 21, 2008.
Where is Melicent Peck located?
Melicent Peck practices at 513 Parnassus Ave S-380, Box 0654, San Francisco, CA 94143. The listed phone number is (415) 476-9362.
What is Melicent Peck's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Melicent Peck enrolled in Medicare?
Yes. Melicent Peck is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Melicent Peck's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melicent Peck reassigns Medicare benefits to 4 organizations: Regents Of The University Of California (San Francisco, CA), University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and County Of Santa Clara (Palo Alto, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melicent Peck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Melicent Peck was last updated on May 14, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ms. Melicent Clare Peck, M.D., PHD · NPI 1033388269
Infectious Disease physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since February 21, 2008.
## Identity
- **NPI:** 1033388269 (Entity type: Individual)
- **Enumerated:** February 21, 2008
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** A105023 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 513 PARNASSUS AVE, S-380, BOX 0654, San Francisco, CA 94143-0654
- **Phone:** (415) 476-9362
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1376613943, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); County Of Santa Clara (NPI 1144330614, Palo Alto, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Stanford University School Of Medicine, class of 2007
## Record status
- **NPPES last updated:** May 14, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1033388269) · Data from the CMS NPPES public registry.