Individual provider Active NPI

Holly Constance Elser, MD, PHD

  • Neurology Physician
  • Philadelphia, PA
National Provider Identifier
1396329454
Registry record updated Jul 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology PhysicianTaxonomy code 2084N0400X
License
MD488359 Issued in PA
Practice address
330 South Ninth Street
Philadelphia, PA 19107-6103
Phone
(215) 662-3606
Fax
(215) 829-6606
NPI assigned
May 5, 2021
Last updated
Jul 17, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 17, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology Physician 2084N0400X MD488359 PA Primary

Addresses

Primary practice location

330 South Ninth Street
Philadelphia, PA 19107-6103

Mailing address

330 South Ninth Street
Philadelphia, PA 19107-6103
Phone (215) 662-3606

Other practice location 1

3400 Spruce St
Philadelphia, PA 19104-4238
Phone (215) 662-2700

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260524000073 PA Practitioner - Neurology 7416427182

Care Compare profile

Medicare Care Compare
Specialty
Neurology
Education
Other, 2021
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

3400 Spruce St
Philadelphia, PA 19104-4226

PO Box
Philadelphia, PA 19182

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine, Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
MD488359PAMDNeurology Physician

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1620172800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784246400000",
    "number": "1396329454",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "330 SOUTH NINTH STREET",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191076103",
            "telephone_number": "215-662-3606",
            "fax_number": "215-829-6606"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "330 SOUTH NINTH STREET",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191076103",
            "telephone_number": "215-662-3606",
            "fax_number": "215-829-6606"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3400 Spruce St",
            "address_purpose": "LOCATION",
            "city": "Philadelphia",
            "state": "PA",
            "postal_code": "191044238",
            "country_code": "US",
            "telephone_number": "215-662-2700",
            "fax_number": "215-349-5579",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ELSER",
        "first_name": "HOLLY",
        "middle_name": "CONSTANCE",
        "name_prefix": "Dr.",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-05-05",
        "last_updated": "2026-07-17",
        "certification_date": "2026-07-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "PA",
            "license": "MD488359",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Philadelphia, PA

Sources for this page

Verify at the official NPI Registry.