Active NPI
John Calvin McMillan, PH.D.
- Clinical Psychologist
- Huntsville, AL
National Provider Identifier
1710926365
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 243
- Practice address
- 2308 Pansy St SW
Huntsville, AL 35801-3803 - Phone
- (256) 533-4377
- Fax
- (256) 539-7874
- NPI assigned
- Jun 6, 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 |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 243 | AL | Primary |
Addresses
Primary practice location
2308 Pansy St SW
Huntsville, AL 35801-3803
Mailing address
2308 Pansy St SW
Huntsville, AL 35801-3803
Phone (256) 533-4377
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 510-70746 | Other | AL | BCBS PROVIDER NUMBER |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Philosophy
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149552000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1710926365",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2308 PANSY ST SW",
"city": "HUNTSVILLE",
"state": "AL",
"postal_code": "358013803",
"telephone_number": "256-533-4377",
"fax_number": "256-539-7874"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2308 PANSY ST SW",
"city": "HUNTSVILLE",
"state": "AL",
"postal_code": "358013803",
"telephone_number": "256-533-4377",
"fax_number": "256-539-7874"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MCMILLAN",
"first_name": "JOHN",
"middle_name": "CALVIN",
"credential": "PH.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-06",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "AL",
"license": "243",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BCBS PROVIDER NUMBER",
"identifier": "510-70746",
"state": "AL"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Huntsville, AL
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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.