Active NPI
Margaret M Postlewaite, PHD
- Clinical Psychologist
- White Plains, NY
National Provider Identifier
1316995772
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 5107
- Practice address
- 16 Byron Ave
White Plains, NY 10606-3443 - Phone
- (914) 428-4245
- NPI assigned
- May 5, 2006
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 5107 | NY | Primary |
Addresses
Primary practice location
16 Byron Ave
White Plains, NY 10606-3443
Mailing address
16 Byron Ave
White Plains, NY 10606-3443
Phone (914) 428-4245
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Jan 23, 2026 through Jan 23, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 5107 | NY | MD | Clinical Psychologist |
| 005107 | NY | MD | Pharmacist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1146787200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1183852800000",
"number": "1316995772",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "16 BYRON AVE",
"city": "WHITE PLAINS",
"state": "NY",
"postal_code": "106063443",
"telephone_number": "914-428-4245"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "16 BYRON AVE",
"city": "WHITE PLAINS",
"state": "NY",
"postal_code": "106063443",
"telephone_number": "914-428-4245"
}
],
"practiceLocations": [],
"basic": {
"last_name": "POSTLEWAITE",
"first_name": "MARGARET",
"middle_name": "M",
"name_prefix": "Dr.",
"credential": "PHD",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2006-05-05",
"last_updated": "2007-07-08",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "NY",
"license": "5107",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in White Plains, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; 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.