Doctor profile · Federal record

Dr. Sarathy Mandayam, MD

Gastroenterology Physician (CMS: Internal Medicine) · Internal Medicine Physician · French Camp, CA

  • NPI 1518911023
  • Accepts Medicare
  • MIPS 68.1 / 100 · 2023
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
500 W Hospital RD
French Camp, CA 952319693
(661) 945-8700
Mailing address
43713 20Th St W Ste 3
Lancaster, CA 935344628

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
March 23, 2020
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
California #A055910

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518911023. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
146
Distinct HCPCS
5
Medicare allowed
$22,379
HCPCS Description Services Patients Avg allowed
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 47 45 $107
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 37 36 $255
45380 Biopsy of large bowel using a flexible endoscope 34 34 $114
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 15 13 $115
45378 Diagnostic exam of large bowel using a flexible endoscope 13 12 $178

In context: peer comparison

Among 1 peers in this city , average services per provider: 29. This provider delivers 5.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$261
Transactions
7
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 5 $217.76
ABBVIE INC. 1 $25.22
Merck Sharp & Dohme LLC 1 $18.34

By nature of payment

Food and Beverage
$261

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
25
Patients
24
Total drug cost
$430
Drug Type Claims Patients Total cost
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 25 24 $430

Frequently asked questions

Auto-generated from federal data
What is Dr. Sarathy Mandayam's medical specialty?
Dr. Sarathy Mandayam practices Gastroenterology Physician in French Camp, CA.
Where does Dr. Sarathy Mandayam practice?
Dr. Sarathy Mandayam practices at 500 W Hospital RD, French Camp, CA 952319693. Office phone: 6619458700.
What is Dr. Sarathy Mandayam's NPI?
Dr. Sarathy Mandayam's National Provider Identifier (NPI) is 1518911023, issued by NPPES.
Does Dr. Sarathy Mandayam accept Medicare assignment?
Yes. Dr. Sarathy Mandayam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sarathy Mandayam commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.