Doctor profile · Federal record
Dr. Mark Geronimo, MD
Family Medicine Physician (CMS: Internal Medicine) · Family Medicine Physician · Hospitalist Physician · Hospitalist Physician · Family Medicine Physician · New London, CT
- NPI 1215132949
- Accepts Medicare
- 26 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
365 Montauk Ave
New London, CT 063204700
(860) 442-0711
fax (413) 543-7962 - Mailing address
-
326 Washington St
Norwich, CT 063602740
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- July 22, 2021
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (3)
- Connecticut #52895 · Missouri #2010024512 · Illinois #036128606
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215132949. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
645
Distinct HCPCS
3
Medicare allowed
$98,930
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 332 | 324 | $134 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 300 | 285 | $178 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 13 | 12 | $81 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 92. This provider delivers 7.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
72
Patients
0
Total drug cost
$1,434
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 20 | 0 | $317 |
| Atorvastatin Calcium | Generic | 16 | 0 | $260 |
| Allopurinol | Generic | 13 | 0 | $325 |
| Carvedilol | Generic | 12 | 0 | $211 |
| Pramipexole Dihydrochloride (Pramipexole Di-Hcl) | Brand | 11 | 0 | $320 |
Frequently asked questions
What is Dr. Mark Geronimo's medical specialty?
Dr. Mark Geronimo practices Family Medicine Physician in New London, CT.
Where does Dr. Mark Geronimo practice?
Dr. Mark Geronimo practices at 365 Montauk Ave, New London, CT 063204700. Office phone: 8604420711.
What is Dr. Mark Geronimo's NPI?
Dr. Mark Geronimo's National Provider Identifier (NPI) is 1215132949, issued by NPPES.
Does Dr. Mark Geronimo accept Medicare assignment?
Yes. Dr. Mark Geronimo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Geronimo commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.