Doctor profile · Federal record
Dr. Atif Zaman, MD
Gastroenterology Physician (CMS: Gastroenterology) · Portland, OR
- NPI 1003821513
- Accepts Medicare
- MIPS 67.7 / 100 · 2023
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3181 Sw Sam Jackson Park RD
Portland, OR 972393011
(503) 494-4373
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- July 10, 2007
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Oregon #MD19123
- Medicaid
- OR #159049
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003821513. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
153
Distinct HCPCS
7
Medicare allowed
$8,799
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 37 | 33 | $66 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 35 | 35 | $5 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 32 | 32 | $66 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 15 | 15 | $115 | |
99451 |
Telephone, internet, or electronic health record assessment and management with written report by consulting physician, at least 5 minutes | 12 | 12 | $36 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 11 | 11 | $107 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 11 | 11 | $67 |
In context: peer comparison
Among 45 peers in Portland Gastroenterology Physician, average services per provider: 59. This provider delivers 2.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
827
Patients
114
Total drug cost
$162,852
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tacrolimus | Generic | 167 | 38 | $24,949 |
| Azathioprine | Generic | 149 | 32 | $8,978 |
| Ursodiol | Generic | 97 | 19 | $23,504 |
| Prednisone | Generic | 58 | 0 | $516 |
| Tenofovir Disoproxil Fumarate | Generic | 53 | 0 | $7,884 |
| Furosemide | Generic | 45 | 0 | $339 |
| Omeprazole | Generic | 44 | 0 | $587 |
| Mycophenolate Mofetil | Generic | 43 | 0 | $5,034 |
| Spironolactone | Generic | 39 | 12 | $1,348 |
| Entecavir | Generic | 34 | 0 | $4,723 |
Hospital affiliations
Frequently asked questions
What is Dr. Atif Zaman's medical specialty?
Dr. Atif Zaman practices Gastroenterology Physician in Portland, OR.
Where does Dr. Atif Zaman practice?
Dr. Atif Zaman practices at 3181 Sw Sam Jackson Park RD, Portland, OR 972393011. Office phone: 5034944373.
What is Dr. Atif Zaman's NPI?
Dr. Atif Zaman's National Provider Identifier (NPI) is 1003821513, issued by NPPES.
Does Dr. Atif Zaman accept Medicare assignment?
Yes. Dr. Atif Zaman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Atif Zaman commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.