Active NPI
Robert K Tittmann, M.D.
- Psychiatry Physician
- Cambridge, MA
National Provider Identifier
1881641561
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- 76965
- Practice address
- 14A Eliot St
Cambridge, MA 02138-5706 - Phone
- (617) 489-4015
- NPI assigned
- May 28, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | 76965 | MA | Primary |
Addresses
Primary practice location
14A Eliot St
Cambridge, MA 02138-5706
Mailing address
14A Eliot St
Cambridge, MA 02138-5706
Phone (617) 489-4015
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Oct 1, 2020 through Oct 1, 2026
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 76965 | MA | MD | Psychiatry Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1148774400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1881641561",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "14A ELIOT ST",
"city": "CAMBRIDGE",
"state": "MA",
"postal_code": "021385706",
"telephone_number": "617-489-4015"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "14A ELIOT ST",
"city": "CAMBRIDGE",
"state": "MA",
"postal_code": "021385706",
"telephone_number": "617-489-4015"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TITTMANN",
"first_name": "ROBERT",
"middle_name": "K",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-05-28",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "MA",
"license": "76965",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Cambridge, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.