Doctor profile · Federal record

Dr. Subramanian Sivarajan, M.D.

Nephrology Physician (CMS: Nephrology) · Nephrology Physician · Palo Alto, CA

  • NPI 1154310951
  • Accepts Medicare
  • 50 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
795 El Camino Real Fl 2
Palo Alto, CA 943012302
(650) 328-8385
Additional location
325 Distel Cir
Los Altos, CA 940221408
(650) 853-6795
fax (816) 444-2810

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
April 23, 2024
Year of graduation
1976 — 50 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State licenses (2)
California #C53314 · Missouri #103776
Medicaid (2)
MO #206687709 · KS #100150360B

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154310951. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
7,081
Distinct HCPCS
7
Medicare allowed
$179,499
HCPCS Description Services Patients Avg allowed
J0881 Injection, darbepoetin alfa, 1 microgram (non-esrd use) 6,200 22 $3
99214 Established patient office or other outpatient visit, 30-39 minutes 364 260 $155
99215 Established patient office or other outpatient visit, 40-54 minutes 278 200 $215
99205 New patient office or other outpatient visit, 60-74 minutes 149 149 $257
96372 Injection of drug or substance under skin or into muscle 55 21 $18
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 23 13 $131
99204 New patient office or other outpatient visit, 45-59 minutes 12 12 $200

In context: peer comparison

Among 4 peers in Palo Alto Nephrology Physician, average services per provider: 576. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$822
Transactions
20
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Travere Therapeutics, INC. 3 $253.14
Amgen INC. 6 $246.62
Ardelyx, INC. 5 $194.10
Calliditas Therapeutics US INC. 2 $46.31
Kyowa Kirin, INC. 1 $24.11
Fresenius USA Marketing, INC. 1 $22.33
Opko Pharmaceuticals, LLC 1 $18.83
Alexion Pharmaceuticals, INC. 1 $16.46

By nature of payment

Food and Beverage
$803
Education
$19

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,042
Patients
235
Total drug cost
$282,486
Drug Type Claims Patients Total cost
Calcitriol Generic 226 46 $2,737
Losartan Potassium Generic 164 58 $2,670
Furosemide Generic 122 37 $737
Farxiga (Dapagliflozin Propanediol) Brand 94 23 $98,668
Amlodipine Besylate Generic 88 24 $588
Jardiance (Empagliflozin) Brand 73 17 $86,655
Lokelma (Sodium Zirconium Cyclosilicate) Brand 42 16 $50,315
Allopurinol Generic 41 14 $769
Prednisone Generic 40 0 $292
Atorvastatin Calcium Generic 33 0 $93

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Subramanian Sivarajan's medical specialty?
Dr. Subramanian Sivarajan practices Nephrology Physician in Palo Alto, CA.
Where does Dr. Subramanian Sivarajan practice?
Dr. Subramanian Sivarajan practices at 795 El Camino Real Fl 2, Palo Alto, CA 943012302. Office phone: 6503288385.
What is Dr. Subramanian Sivarajan's NPI?
Dr. Subramanian Sivarajan's National Provider Identifier (NPI) is 1154310951, issued by NPPES.
Does Dr. Subramanian Sivarajan accept Medicare assignment?
Yes. Dr. Subramanian Sivarajan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Subramanian Sivarajan commonly perform?
Top Medicare-reported procedures in 2023: Injection, darbepoetin alfa, 1 microgram (non-esrd use) (HCPCS J0881); 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.