Doctor profile · Federal record

Dr. Mamatha Siricilla, M.B.B.S

Medical Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Hematology (Internal Medicine) Physician · Hematology & Oncology Physician · Cameron Park, CA

  • NPI 1487967576
  • Accepts Medicare
  • 20 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3581 Palmer Dr Ste 400
Cameron Park, CA 956828237
(530) 676-6600
Additional location
20055 Lake Chabot RD Ste 130
Castro Valley, CA 945465332
(888) 924-1036

Credentials & registration

NPPES · NUCC
NPI registered
July 2010 — 16 yrs on file
Profile last updated
October 8, 2024
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State licenses (2)
California #A148859 · California #148859

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1487967576. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
692
Distinct HCPCS
6
Medicare allowed
$69,270
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 268 218 $68
99214 Established patient office or other outpatient visit, 30-39 minutes 248 134 $100
99215 Established patient office or other outpatient visit, 40-54 minutes 105 66 $144
99205 New patient office or other outpatient visit, 60-74 minutes 39 39 $185
99204 New patient office or other outpatient visit, 45-59 minutes 16 16 $136
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 16 12 $123

In context: peer comparison

Among 1 peers in this city , average services per provider: 115. This provider delivers 6.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,165
Transactions
78
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 13 $358.45
PFIZER INC. 11 $185.20
Novartis Pharmaceuticals Corporation 8 $175.22
E.R. Squibb & Sons, L.L.C. 11 $174.66
Genentech USA, Inc. 7 $146.55
Takeda Pharmaceuticals U.S.A., Inc. 4 $95.47
Janssen Biotech, Inc. 3 $83.03
Merck Sharp & Dohme LLC 3 $82.40
BeiGene USA, Inc. 3 $70.99
Incyte Corporation 3 $67.59
Ipsen Biopharmaceuticals, Inc 2 $61.39
Eisai Inc. 3 $61.28
Celgene Corporation 3 $55.80
Astellas Pharma US Inc 2 $50.26
ABBVIE INC. 2 $48.92

By nature of payment

Food and Beverage
$2,155
Education
$9

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
602
Patients
183
Total drug cost
$77,475
Drug Type Claims Patients Total cost
Letrozole Generic 112 32 $8,294
Anastrozole Generic 96 27 $2,461
Potassium Chloride Generic 57 16 $1,692
Acyclovir Generic 37 13 $934
Prochlorperazine Maleate Generic 36 24 $378
Eliquis (Apixaban) Brand 34 0 $22,995
Ondansetron Hcl Generic 34 18 $584
Dexamethasone Generic 32 16 $650
Prednisone Generic 32 12 $127
Gabapentin Generic 24 0 $253

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mamatha Siricilla's medical specialty?
Dr. Mamatha Siricilla practices Medical Oncology Physician in Cameron Park, CA.
Where does Dr. Mamatha Siricilla practice?
Dr. Mamatha Siricilla practices at 3581 Palmer Dr Ste 400, Cameron Park, CA 956828237. Office phone: 5306766600.
What is Dr. Mamatha Siricilla's NPI?
Dr. Mamatha Siricilla's National Provider Identifier (NPI) is 1487967576, issued by NPPES.
Does Dr. Mamatha Siricilla accept Medicare assignment?
Yes. Dr. Mamatha Siricilla accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mamatha Siricilla commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.