DR. CHARLES T LYNCH MD
NPI 1972684348
Internal Medicine - Nephrology in San Francisco, CA
About Dr. Charles T Lynch Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHARLES T LYNCH MD (NPI 1972684348) is an individual nephrology provider in San Francisco, California, licensed in California (A43429) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Southwestern Medical School At Dallas (1985).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Dr. Charles T Lynch Md 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 Reassignment
Medicare enrollment records show Charles Lynch reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94115
- Reassigned Medicare billing, California enrollment
- 8 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 9
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 94115 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 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
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 Charles Lynch's NPI number?
The NPI number for Charles Lynch is 1972684348. It was assigned to this individual provider in the NPPES registry on October 18, 2006.
Where is Charles Lynch located?
Charles Lynch practices at 2100 Webster St Suite 320, San Francisco, CA 94115. The listed phone number is (415) 923-3456.
What is Charles Lynch's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Charles Lynch enrolled in Medicare?
Yes. Charles Lynch 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 organization bills Medicare for Charles Lynch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charles Lynch reassigns Medicare benefits to Renal Medical Associates (San Francisco, CA). The 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 Charles Lynch'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 Charles Lynch was last updated on July 29, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Charles T Lynch, MD · NPI 1972684348
Nephrology physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since October 18, 2006.
## Identity
- **NPI:** 1972684348 (Entity type: Individual)
- **Enumerated:** October 18, 2006
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** A43429 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2100 WEBSTER ST, SUITE 320, San Francisco, CA 94115-2375
- **Phone:** (415) 923-3456 · **Fax:** (415) 923-3121
## 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:** Renal Medical Associates (NPI 1447359310, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Southwestern Medical School At Dallas, class of 1985
## Record status
- **NPPES last updated:** July 29, 2022
- **Other identifiers:** Other 00A434290 (CA); Medicaid 5735023 (CA); Other XXXXX 9619 941150000; and 2 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1972684348) · Data from the CMS NPPES public registry.