Doctor profile · Federal record
Dr. Mark Hollemon, D.O.
Internal Medicine Physician (CMS: Internal Medicine) · Portland, OR
- NPI 1881709210
- Accepts Medicare
- 33 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2330 Nw Flanders St, Suite 104
Portland, OR 972103442
(503) 224-0817
fax (503) 224-0839 - Mailing address
-
Po Box 23200
Portland, OR 972813200
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- February 11, 2022
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Oregon #DO18822
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881709210. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
56
Distinct HCPCS
1
Medicare allowed
$5,011
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 56 | 16 | $89 |
In context: peer comparison
Among 209 peers in Portland Internal Medicine Physician, average services per provider: 60. This provider delivers 0.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
315
Patients
165
Total drug cost
$17,157
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 41 | 21 | $918 |
| Furosemide | Generic | 33 | 22 | $458 |
| Amlodipine Besylate | Generic | 25 | 14 | $325 |
| Carvedilol | Generic | 25 | 13 | $301 |
| Lactulose | Generic | 24 | 14 | $643 |
| Potassium Chloride | Generic | 20 | 13 | $530 |
| Metoprolol Tartrate | Generic | 19 | 12 | $223 |
| Tamsulosin Hcl | Generic | 19 | 0 | $301 |
| Ciprofloxacin Hcl | Generic | 18 | 18 | $169 |
| Cefpodoxime Proxetil | Generic | 16 | 16 | $570 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Hollemon's medical specialty?
Dr. Mark Hollemon practices Internal Medicine Physician in Portland, OR.
Where does Dr. Mark Hollemon practice?
Dr. Mark Hollemon practices at 2330 Nw Flanders St, Portland, OR 972103442. Office phone: 5032240817.
What is Dr. Mark Hollemon's NPI?
Dr. Mark Hollemon's National Provider Identifier (NPI) is 1881709210, issued by NPPES.
Does Dr. Mark Hollemon accept Medicare assignment?
Yes. Dr. Mark Hollemon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Hollemon commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.