Doctor profile · Federal record

Dr. Waseem Ahmad, MD

Nephrology Physician (CMS: Nephrology) · Vallejo, CA

  • NPI 1366520108
  • Accepts Medicare
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
975 Sereno Dr
Vallejo, CA 945892441
(707) 651-1000
Mailing address
1800 Harrison St Fl 7
Oakland, CA 946123466

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
December 13, 2021
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
California #A73846
Medicaid
CA #00A738460

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366520108. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
65
Distinct HCPCS
1
Medicare allowed
$5,476
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 65 16 $84

In context: peer comparison

Among 3 peers in this city , average services per provider: 62. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$309
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
FUJIFILM Healthcare Americas Corporation 1 $282.13
Teva Pharmaceuticals USA, Inc. 1 $26.79

By nature of payment

Food and Beverage
$309

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
666
Patients
240
Total drug cost
$49,904
Drug Type Claims Patients Total cost
Calcitriol Generic 111 44 $2,433
Amlodipine Besylate Generic 83 36 $1,271
Allopurinol Generic 76 23 $704
Furosemide Generic 72 28 $1,435
Losartan Potassium Generic 61 22 $792
Lisinopril Generic 51 20 $678
Calcium Acetate Generic 42 20 $5,570
Sevelamer Carbonate Generic 38 21 $11,745
Terazosin Hcl Generic 38 14 $2,322
Metoprolol Tartrate Generic 29 12 $338

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Waseem Ahmad's medical specialty?
Dr. Waseem Ahmad practices Nephrology Physician in Vallejo, CA.
Where does Dr. Waseem Ahmad practice?
Dr. Waseem Ahmad practices at 975 Sereno Dr, Vallejo, CA 945892441. Office phone: 7076511000.
What is Dr. Waseem Ahmad's NPI?
Dr. Waseem Ahmad's National Provider Identifier (NPI) is 1366520108, issued by NPPES.
Does Dr. Waseem Ahmad accept Medicare assignment?
Yes. Dr. Waseem Ahmad accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Waseem Ahmad commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.