Active NPI
Nathan Alan Sharer, PSY.D.
- Clinical Psychologist
- Baltimore, MD
National Provider Identifier
1457740508
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Psychologist
- License
- 05464
- Practice address
- 5730 Cottonworth Ave Unit 10402
Baltimore, MD 21209-7506 - Phone
- (443) 687-9271
- NPI assigned
- Jan 13, 2015
- 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 |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 05464 | MD | Primary |
Addresses
Primary practice location
5730 Cottonworth Ave Unit 10402
Baltimore, MD 21209-7506
Mailing address
5730 Cottonworth Ave Unit 10402
Baltimore, MD 21209-7506
Phone (443) 687-9271
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Sep 5, 2025 through Sep 5, 2027
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 05464 | MD | MD | Occupational Therapist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1421107200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1774396800000",
"number": "1457740508",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "5730 COTTONWORTH AVE UNIT 10402",
"city": "BALTIMORE",
"state": "MD",
"postal_code": "212097506",
"telephone_number": "443-687-9271"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5730 COTTONWORTH AVE UNIT 10402",
"city": "BALTIMORE",
"state": "MD",
"postal_code": "212097506",
"telephone_number": "443-687-9271"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SHARER",
"first_name": "NATHAN",
"middle_name": "ALAN",
"name_prefix": "Dr.",
"credential": "PSY.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2015-01-13",
"last_updated": "2026-03-25",
"certification_date": "2026-03-25",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "MD",
"license": "05464",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Baltimore, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 25, 2026; 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.