Doctor profile · Federal record
Dr. Mark Ostrem, MD
Geriatric Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · Quincy, MA
- NPI 1811985633
- Accepts Medicare
- 50 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
54 Miller St, Suite 300
Quincy, MA 021694725
(617) 481-3300
fax (617) 481-3305 - Mailing address
-
362 N Bedford St
East Bridgewater, MA 023331148
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- January 15, 2018
- Year of graduation
- 1976 — 50 yrs since
- Specialty taxonomy
- 207RG0300X — NUCC code
- State license (1)
- Massachusetts #44501
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811985633. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,256
Distinct HCPCS
8
Medicare allowed
$251,570
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 1,646 | 186 | $115 | |
99308 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 267 | 109 | $80 | |
99306 |
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 107 | 95 | $195 | |
99497 |
Advance care planning, first 30 minutes | 85 | 71 | $80 | |
99406 |
Smoking and tobacco use intensive counseling, 4-10 minutes | 51 | 16 | $12 | |
99316 |
Nursing facility discharge management, more than 30 minutes | 41 | 39 | $140 | |
99310 |
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 37 | 29 | $165 | |
99307 |
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | 22 | 17 | $43 |
In context: peer comparison
Among 4 peers in Quincy Geriatric Medicine (Internal Medicine) Physician, average services per provider: 119. This provider delivers 19× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
5,913
Patients
578
Total drug cost
$231,056
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trazodone Hcl | Generic | 696 | 66 | $7,478 |
| Atorvastatin Calcium | Generic | 665 | 82 | $8,983 |
| Gabapentin | Generic | 501 | 49 | $8,582 |
| Baclofen | Generic | 453 | 45 | $17,931 |
| Eliquis (Apixaban) | Brand | 436 | 31 | $120,840 |
| Furosemide | Generic | 414 | 38 | $2,337 |
| Divalproex Sodium | Generic | 371 | 31 | $22,967 |
| Mirtazapine | Generic | 358 | 36 | $8,400 |
| Levothyroxine Sodium | Generic | 352 | 43 | $5,085 |
| Quetiapine Fumarate | Generic | 317 | 24 | $8,890 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Ostrem's medical specialty?
Dr. Mark Ostrem practices Geriatric Medicine (Internal Medicine) Physician in Quincy, MA.
Where does Dr. Mark Ostrem practice?
Dr. Mark Ostrem practices at 54 Miller St, Quincy, MA 021694725. Office phone: 6174813300.
What is Dr. Mark Ostrem's NPI?
Dr. Mark Ostrem's National Provider Identifier (NPI) is 1811985633, issued by NPPES.
Does Dr. Mark Ostrem accept Medicare assignment?
Yes. Dr. Mark Ostrem accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Ostrem commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.