Doctor profile · Federal record

Dr. Humayun Tufail, MD

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

  • NPI 1902947625
  • Accepts Medicare
  • 32 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
20103 Lake Chabot RD
Castro Valley, CA 94546
(510) 727-3256
fax (510) 733-3107
Additional location
920 Stanton L Young Blvd, Wp 1130
Oklahoma City, OK 731045020
(405) 271-5963
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
March 7, 2023
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
California #A103258

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1902947625. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
136
Distinct HCPCS
2
Medicare allowed
$8,288
HCPCS Description Services Patients Avg allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 110 19 $55
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 26 14 $88

In context: peer comparison

Among 15 peers in this city , average services per provider: 130. This provider delivers 1.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$35
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) 1 $35.06

By nature of payment

Food and Beverage
$35

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
375
Patients
24
Total drug cost
$12,794
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 66 12 $386
Atorvastatin Calcium Generic 61 12 $398
Losartan Potassium Generic 28 0 $295
Gabapentin Generic 25 0 $227
Pantoprazole Sodium Generic 23 0 $305
Hydralazine Hcl Generic 22 0 $241
Latanoprost Generic 22 0 $265
Tamsulosin Hcl Generic 21 0 $129
Metoprolol Succinate Generic 17 0 $128
Omeprazole Generic 17 0 $101

Frequently asked questions

Auto-generated from federal data
What is Dr. Humayun Tufail's medical specialty?
Dr. Humayun Tufail practices Hospitalist Physician in Castro Valley, CA.
Where does Dr. Humayun Tufail practice?
Dr. Humayun Tufail practices at 20103 Lake Chabot RD, Castro Valley, CA 94546. Office phone: 5107273256.
What is Dr. Humayun Tufail's NPI?
Dr. Humayun Tufail's National Provider Identifier (NPI) is 1902947625, issued by NPPES.
Does Dr. Humayun Tufail accept Medicare assignment?
Yes. Dr. Humayun Tufail accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Humayun Tufail commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.