Christine Greenia, M.D.
Christine Greenia, M.D. is a Psychiatry Physician in Newport, RI, registered under NPI 1003173048. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Newport, based on OpenStreetMap data collected Sep 9, 2026. Parking is available about 286 ft away. The nearest transit stop is 669 ft away, served by Broadway before Clinton. If you arrive early, there is a coffee shop 0.39 mi away.
Getting here and what is nearby
Parking 226 ft ~1 min
Parking 277 ft ~2 min
Parking 286 ft ~2 min
Transit Broadway before Friendship 549 ft ~3 min
Transit Broadway opposite Friendship 603 ft ~3 min
Transit Broadway before Clinton 669 ft ~3 min
Convenience C. H. Charles 5 & Dime 788 ft ~3 min
Restaurant The Parlour (Formerly Cafe 200) 1,004 ft ~4 min
200 Broadway, Newport 02840
Restaurant Newport Tokyo House 0.25 mi ~6 min
Mo-Th 11:30-22:00; Fr,Sa 11:30-23:00; Su 12:30-22:00
Coffee The Nitro Bar 0.26 mi ~6 min
2 Pond Avenue, newport 02840
Restaurant Ben's Chili Dogs 0.27 mi ~6 min
Su-We 11:00-20:00, Th-Sa 11:00-02:00
Convenience Cumberland Farms 0.29 mi ~6 min
125 Broadway, 02840
Coffee Hungry Monkey Cafe 0.35 mi ~7 min
Coffee The Corner Cafe 0.39 mi ~8 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| MD16278 | RI | Psychiatry Physician primary |
This provider holds licence MD16278 issued in RI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Psychiatry
- PAC ID
- 7315295235
- Enrollment ID
- I20180808002285
Medicare enrolment is recorded as approved under the provider type Practitioner - Psychiatry. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Psychiatry covers
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems. NUCC Health Care Provider Taxonomy, code 2084P0800X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084P0800X | Psychiatry Physician Psychiatry | MD16278 | RI | primary |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003173048 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 16, 2012 |
| Last updated | Dec 9, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | M.D. |
| Practice address |
11 FRIENDSHIP ST Newport, RI 02840 (401) 845-1810 Fax (401) 845-1085 |
| Other identifiers |
MD16278
· Other (RI) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 7 | 3 | 0 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 7 | 6 | 0 | 8 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.