Doctor profile · Federal record
Dr. Mark Sofia, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Portland, OR
- NPI 1912261496
- Accepts Medicare
- MIPS 90.5 / 100 · 2023
- 14 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
3181 Sw Sam Jackson Park RD # L461
Portland, OR 97239
(503) 494-2270
Credentials & registration
- NPI registered
- June 2012 — 14 yrs on file
- Profile last updated
- August 14, 2018
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Oregon #MD188747
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1912261496. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
203
Distinct HCPCS
7
Medicare allowed
$23,686
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 59 | 50 | $97 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 33 | 33 | $111 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 28 | 28 | $246 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 26 | 26 | $123 | |
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 | 24 | 24 | $5 | |
91110 |
Imaging of digestive tract done from the inside of the digestive tract | 17 | 17 | $115 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 16 | 16 | $132 |
In context: peer comparison
Among 45 peers in Portland Gastroenterology Physician, average services per provider: 59. This provider delivers 3.4× the peer median.Open Payments
Industry payments received
All-time total
$139
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 2 | $139.13 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
512
Patients
88
Total drug cost
$5,153,914
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Stelara (Ustekinumab) | Brand | 131 | 18 | $3,869,987 |
| Humira(Cf) Pen (Adalimumab) | Brand | 60 | 0 | $804,328 |
| Azathioprine | Generic | 51 | 0 | $3,262 |
| Colestipol Hcl | Generic | 36 | 13 | $6,069 |
| Omeprazole | Generic | 36 | 11 | $841 |
| Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 32 | 28 | $825 |
| Mesalamine | Generic | 27 | 0 | $35,059 |
| Methotrexate (Methotrexate Sodium) | Brand | 22 | 0 | $433 |
| Balsalazide Disodium | Generic | 21 | 0 | $1,338 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 19 | 18 | $426 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Sofia's medical specialty?
Dr. Mark Sofia practices Gastroenterology Physician in Portland, OR.
Where does Dr. Mark Sofia practice?
Dr. Mark Sofia practices at 3181 Sw Sam Jackson Park RD # L461, Portland, OR 97239. Office phone: 5034942270.
What is Dr. Mark Sofia's NPI?
Dr. Mark Sofia's National Provider Identifier (NPI) is 1912261496, issued by NPPES.
Does Dr. Mark Sofia accept Medicare assignment?
Yes. Dr. Mark Sofia accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Sofia commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.