Doctor profile · Federal record

Dr. Shahid Siddiqui, MD

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Lancaster, CA

  • NPI 1639276140
  • Accepts Medicare
  • 39 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
43830 10Th St W
Lancaster, CA 935344826
(702) 579-5858
fax (800) 890-6055
Additional location
26542 Brooks Cir
Stevenson Ranch, CA 913811432
Mailing address
26542 Brooks Cir
Stevenson Ranch, CA 913811432

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
March 17, 2018
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #A94134 · Arizona #35650

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639276140. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,214
Distinct HCPCS
9
Medicare allowed
$135,716
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 451 188 $83
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 362 137 $125
99239 Hospital discharge day management, more than 30 minutes 182 175 $121
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 68 63 $182
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 47 28 $114
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 43 28 $79
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 27 26 $141
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 21 20 $193
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 13 12 $137

In context: peer comparison

Among 12 peers in this city , average services per provider: 149. This provider delivers 8.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$172
Transactions
6
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) 5 $155.80
Bayer Healthcare Pharmaceuticals Inc. 1 $16.56

By nature of payment

Food and Beverage
$172

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,017
Patients
284
Total drug cost
$50,060
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 134 26 $36,695
Atorvastatin Calcium Generic 126 45 $1,738
Furosemide Generic 87 24 $586
Famotidine Generic 86 29 $873
Ondansetron Hcl Generic 71 11 $615
Amlodipine Besylate Generic 68 21 $550
Lisinopril Generic 64 21 $396
Metformin Hcl Generic 56 13 $427
Pantoprazole Sodium Generic 54 36 $2,117
Metoprolol Tartrate Generic 53 20 $564

Frequently asked questions

Auto-generated from federal data
What is Dr. Shahid Siddiqui's medical specialty?
Dr. Shahid Siddiqui practices Internal Medicine Physician in Lancaster, CA.
Where does Dr. Shahid Siddiqui practice?
Dr. Shahid Siddiqui practices at 43830 10Th St W, Lancaster, CA 935344826. Office phone: 7025795858.
What is Dr. Shahid Siddiqui's NPI?
Dr. Shahid Siddiqui's National Provider Identifier (NPI) is 1639276140, issued by NPPES.
Does Dr. Shahid Siddiqui accept Medicare assignment?
Yes. Dr. Shahid Siddiqui accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shahid Siddiqui commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.