Doctor profile · Federal record
Dr. Allison Ostroff, M.D.
Internal Medicine Physician (CMS: Geriatric Medicine) · Geriatric Medicine (Internal Medicine) Physician · Greenwich, CT
- NPI 1720262397
- Accepts Medicare
- MIPS 89.1 / 100 · 2023
- 21 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
75 Holly Hill Ln
Greenwich, CT 068306098
(203) 869-6960
fax (203) 869-5103
Credentials & registration
- NPI registered
- December 2007 — 19 yrs on file
- Profile last updated
- January 10, 2017
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Connecticut #048433
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720262397. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
427
Distinct HCPCS
10
Medicare allowed
$47,627
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 95 | 65 | $135 | |
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 67 | 35 | $33 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 52 | 44 | $96 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 52 | 39 | $188 | |
36415 |
Insertion of needle into vein for collection of blood sample | 50 | 39 | $8 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 28 | 28 | $231 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 26 | 26 | $119 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 23 | 23 | $136 | |
99309 |
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 20 | 13 | $113 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $176 |
In context: peer comparison
Among 19 peers in this city , average services per provider: 94. This provider delivers 4.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
760
Patients
262
Total drug cost
$10,937
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 127 | 49 | $1,920 |
| Levothyroxine Sodium | Generic | 86 | 35 | $2,560 |
| Escitalopram Oxalate | Generic | 68 | 21 | $796 |
| Sertraline Hcl | Generic | 66 | 16 | $584 |
| Losartan Potassium | Generic | 50 | 22 | $798 |
| Trazodone Hcl | Generic | 47 | 18 | $427 |
| Lisinopril | Generic | 41 | 16 | $361 |
| Buspirone Hcl | Generic | 38 | 0 | $489 |
| Gabapentin | Generic | 38 | 15 | $617 |
| Quetiapine Fumarate | Generic | 36 | 14 | $340 |
Frequently asked questions
What is Dr. Allison Ostroff's medical specialty?
Dr. Allison Ostroff practices Internal Medicine Physician in Greenwich, CT.
Where does Dr. Allison Ostroff practice?
Dr. Allison Ostroff practices at 75 Holly Hill Ln, Greenwich, CT 068306098. Office phone: 2038696960.
What is Dr. Allison Ostroff's NPI?
Dr. Allison Ostroff's National Provider Identifier (NPI) is 1720262397, issued by NPPES.
Does Dr. Allison Ostroff accept Medicare assignment?
Yes. Dr. Allison Ostroff accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Allison Ostroff commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.