Doctor profile · Federal record

Dr. Alina Haq, M.D.

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Castro Valley, CA

  • NPI 1669665436
  • Accepts Medicare
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
20103 Lake Chabot RD
Castro Valley, CA 945465305
(510) 727-3256
Additional location
20101 Lake Chabot RD
Castro Valley, CA 945465305
fax (510) 727-3107
Additional location
2505 W Hammer Ln
Stockton, CA 952092839
(209) 957-7050
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
August 2007 — 19 yrs on file
Profile last updated
February 19, 2021
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
California #A116328

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669665436. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
718
Distinct HCPCS
4
Medicare allowed
$105,655
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 356 188 $134
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 202 196 $197
99239 Hospital discharge day management, more than 30 minutes 90 89 $131
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 70 53 $90

In context: peer comparison

Among 15 peers in this city , average services per provider: 130. This provider delivers 5.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
46
Patients
0
Total drug cost
$839
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 22 0 $287
Levetiracetam Generic 13 0 $456
Prednisone Generic 11 0 $96

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Alina Haq's medical specialty?
Dr. Alina Haq practices Hospitalist Physician in Castro Valley, CA.
Where does Dr. Alina Haq practice?
Dr. Alina Haq practices at 20103 Lake Chabot RD, Castro Valley, CA 945465305. Office phone: 5107273256.
What is Dr. Alina Haq's NPI?
Dr. Alina Haq's National Provider Identifier (NPI) is 1669665436, issued by NPPES.
Does Dr. Alina Haq accept Medicare assignment?
Yes. Dr. Alina Haq accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alina Haq commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.