Active NPI
Rosemary Andries Horstmann, M.D.
- Psychiatry Physician
- Allentown, PA
National Provider Identifier
1982603460
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- MD-015524-E
- Practice address
- 1251 S Cedar Crest Blvd
Suite 301 C
Allentown, PA 18103-6205 - Phone
- (610) 776-0211
- NPI assigned
- Jul 18, 2005
- Sex
- Female
- 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 | MD-015524-E | PA | Primary |
Addresses
Primary practice location
1251 S Cedar Crest Blvd
Suite 301 C
Allentown, PA 18103-6205
Mailing address
1251 S Cedar Crest Blvd
Suite 301 C
Allentown, PA 18103-6205
Phone (610) 776-0211
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| HO034745 | Other | PA | HIGHMARK BLUE SHIELD INSU |
| 01428101 | Other | PA | CAPITAL BLUE CROSS INSURA |
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 Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD-015524-E | PA | MD | Psychiatry Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1121644800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1982603460",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1251 S CEDAR CREST BLVD",
"address_2": "SUITE 301 C",
"city": "ALLENTOWN",
"state": "PA",
"postal_code": "181036205",
"telephone_number": "610-776-0211"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1251 S CEDAR CREST BLVD",
"address_2": "SUITE 301 C",
"city": "ALLENTOWN",
"state": "PA",
"postal_code": "181036205",
"telephone_number": "610-776-0211"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HORSTMANN",
"first_name": "ROSEMARY",
"middle_name": "ANDRIES",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2005-07-18",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "PA",
"license": "MD-015524-E",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "HIGHMARK BLUE SHIELD INSU",
"identifier": "HO034745",
"state": "PA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "CAPITAL BLUE CROSS INSURA",
"identifier": "01428101",
"state": "PA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Allentown, PA
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.