Doctor profile · Federal record

Dr. Mustafa Ammar, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Pediatrics Physician · Yuba City, CA

  • NPI 1558363168
  • Accepts Medicare
  • 37 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1000 Sutter St
Yuba City, CA 959913459
(530) 673-9420
fax (530) 673-9451
Additional location
608 J St
Marysville, CA 959015413
(530) 749-4180
fax (530) 740-5150
Mailing address
Po Box A D
Yuba City, CA 959921396

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
March 26, 2026
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A52256

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558363168. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
207
Distinct HCPCS
4
Medicare allowed
$875
HCPCS Description Services Patients Avg allowed
81002 Urinalysis, manual test 144 114 $3
82962 Blood glucose (sugar) test performed by hand-held instrument 33 29 $3
85018 Blood count, hemoglobin 15 15 $2
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 15 15 $16

In context: peer comparison

Among 5 peers in this city , average services per provider: 1,081. This provider delivers 0.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$836
Transactions
47
Manufacturers
12
Payer (manufacturer) Industry Txns Amount
ViiV Healthcare Company 23 $282.37
ABBVIE INC. 8 $157.68
Merck Sharp & Dohme LLC 3 $90.40
Exact Sciences Corporation 2 $82.27
Novo Nordisk Inc 3 $51.42
GENZYME CORPORATION 2 $47.52
PFIZER INC. 1 $25.71
Regeneron Healthcare Solutions, Inc. 1 $25.07
Amgen Inc. 1 $20.46
QIAGEN, LLC 1 $20.39
GlaxoSmithKline, LLC. 1 $18.38
Cranial Technologies, Inc 1 $14.34

By nature of payment

Food and Beverage
$836

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,709
Patients
635
Total drug cost
$171,637
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 427 110 $9,719
Metformin Hcl Generic 251 66 $3,467
Losartan Potassium Generic 243 55 $4,177
Omeprazole Generic 228 52 $4,674
Amlodipine Besylate Generic 215 56 $3,067
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 176 27 $5,118
Gabapentin Generic 172 42 $5,886
Levothyroxine Sodium Generic 163 42 $2,941
Metoprolol Succinate Generic 148 33 $3,371
Sertraline Hcl Generic 123 27 $2,337

Frequently asked questions

Auto-generated from federal data
What is Dr. Mustafa Ammar's medical specialty?
Dr. Mustafa Ammar practices Internal Medicine Physician in Yuba City, CA.
Where does Dr. Mustafa Ammar practice?
Dr. Mustafa Ammar practices at 1000 Sutter St, Yuba City, CA 959913459. Office phone: 5306739420.
What is Dr. Mustafa Ammar's NPI?
Dr. Mustafa Ammar's National Provider Identifier (NPI) is 1558363168, issued by NPPES.
Does Dr. Mustafa Ammar accept Medicare assignment?
Yes. Dr. Mustafa Ammar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mustafa Ammar commonly perform?
Top Medicare-reported procedures in 2023: Urinalysis, manual test (HCPCS 81002); Blood glucose (sugar) test performed by hand-held instrument (HCPCS 82962); Blood count, hemoglobin (HCPCS 85018). Source: CMS Medicare Physician & Other Practitioners file.