Active NPI
Phillip Morton Hamm, PHD, ABPP
- Forensic Psychologist
- Merced, CA
National Provider Identifier
1891844494
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Forensic Psychologist
- License
- PSY4310
- Practice address
- 3323 M St
Merced, CA 95348-2714 - Phone
- (209) 723-5458
- Fax
- (209) 385-3856
- NPI assigned
- Jan 10, 2007
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | PSY4310 | CA | |
| Forensic Psychologist | 103TF0200X | PSY4310 | CA | Primary |
Addresses
Primary practice location
3323 M St
Merced, CA 95348-2714
Mailing address
3323 M St
Merced, CA 95348-2714
Phone (209) 723-5458
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
- Opted out of Medicare
- Yes, effective Apr 1, 2016 through Apr 1, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PSY4310 | CA | MD | Forensic Psychologist |
| 4310 | CA | MD | Feeding, Eating & Swallowing Occupational Therapist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1168387200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1891844494",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3323 M ST",
"city": "MERCED",
"state": "CA",
"postal_code": "953482714",
"telephone_number": "209-723-5458",
"fax_number": "209-385-3856"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3323 M ST",
"city": "MERCED",
"state": "CA",
"postal_code": "953482714",
"telephone_number": "209-723-5458",
"fax_number": "209-385-3856"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HAMM",
"first_name": "PHILLIP",
"middle_name": "MORTON",
"name_prefix": "Dr.",
"credential": "PHD, ABPP",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-01-10",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "CA",
"license": "PSY4310",
"primary": false
},
{
"code": "103TF0200X",
"taxonomy_group": "",
"desc": "Psychologist, Forensic",
"state": "CA",
"license": "PSY4310",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Merced, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.