Active NPI
Todd F. Holzman, MD
- Psychiatry Physician
- Cambridge, MA
National Provider Identifier
1467490318
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- 33242
- Practice address
- 6 Camden PL
Cambridge, MA 02138-4706 - Phone
- (617) 491-4333
- Fax
- (617) 491-4333
- NPI assigned
- Jun 3, 2006
- Sex
- Male
- Sole proprietor
- Yes
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 | 33242 | MA | Primary |
Addresses
Primary practice location
6 Camden PL
Cambridge, MA 02138-4706
Mailing address
6 Camden PL
Cambridge, MA 02138-4706
Phone (617) 491-4333
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 711291 | Other | MA | TUFTS HEALTH PLAN |
| M08120 | Other | MA | BLUE CROSS |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20050701000282 | MA | Practitioner - Psychiatry | 6305882184 | Practice locations: Cambridge, MA |
Care Compare profile
Medicare Care Compare- Specialty
- Psychiatry
- Education
- Other, 1966
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
Practice addresses (Care Compare)
6 Camden PL
Cambridge, MA 02138-4706
Phone (617) 491-4333
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 33242 | MA | MD | Psychiatry Physician |
Interoperability endpoints
- todd.holzman.1@15802.direct.athenahealth.com
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149292800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1776038400000",
"number": "1467490318",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6 CAMDEN PL",
"city": "CAMBRIDGE",
"state": "MA",
"postal_code": "021384706",
"telephone_number": "617-491-4333",
"fax_number": "617-491-4333"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6 CAMDEN PL",
"city": "CAMBRIDGE",
"state": "MA",
"postal_code": "021384706",
"telephone_number": "617-491-4333",
"fax_number": "617-491-4333"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HOLZMAN",
"first_name": "TODD",
"middle_name": "F.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-06-03",
"last_updated": "2026-04-13",
"certification_date": "2026-04-13",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "MA",
"license": "33242",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "TUFTS HEALTH PLAN",
"identifier": "711291",
"state": "MA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BLUE CROSS",
"identifier": "M08120",
"state": "MA"
}
],
"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 Apr 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; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.