What is Charles Lynch's specialty?

Charles Lynch (NPI 1972684348) is a Medicare-billing provider whose primary specialty is Nephrology in San Francisco, CA.

Where does Charles Lynch practice?

Charles Lynch practices in San Francisco, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1972684348.

How much does Medicare pay Charles Lynch?

Charles Lynch (NPI 1972684348) received approximately $258K in total Medicare Part B payments, serving 460 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1972684348

Charles LynchMD

NephrologySan Francisco, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

725

Unique beneficiaries

—

Total services

1,645

Distinct HCPCS

Medicare payment

$246K

Peer benchmark

Total Medicare services vs. 985 Nephrology providers in CA — above median (cohort median 1,482).

PRESCRIBING · PART D · 2024

Total Rx claims

1,340

Beneficiaries

—

Total drug cost

$217K

Distinct drugs

Brand share

17.2%

Top prescribed drugs

Amlodipine Besylate126 claims

Losartan Potassium117 claims

Metformin Hcl61 claims

Atorvastatin Calcium61 claims

Lisinopril56 claims

QUALITY · MIPS · 2024

Final MIPS score

96.3

Quality

80.8

Cost

73.6

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.90%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Charles Lynch's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 34 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CARPENTER, HOWARD	51	133
Joshua Bernstein Nephrology · San Francisco, CA	50	130
Ilyas Iliya Internal Medicine · San Francisco, CA	49	153
Derk Purcell Diagnostic Radiology · San Francisco, CA	40	61
City & County Of San Francisco Ambulance Service Provider · San Francisco, CA	37	92
STEVENS, SUSAN	37	135
NPI 1275567943	31	81
Myron Marx Diagnostic Radiology · San Francisco, CA	29	50
TOTAL RENAL CARE INC	26	371
Michael Borah Internal Medicine · San Francisco, CA	25	78
Edward Baker Diagnostic Radiology · San Francisco, CA	25	76
MOON, KIRK	23	59

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events