NPIMap

Individual provider Active NPI

Lauren Hart Hammer, MD

  • Neurology Physician
  • Philadelphia, PA
National Provider Identifier
1174918122
Registry record updated Jul 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology PhysicianTaxonomy code 2084N0400X
License
MD483283 Issued in PA
Practice address
330 South Ninth Street
Philadelphia, PA 19107-6103
Phone
(215) 662-3606
Fax
(215) 829-6606
NPI assigned
Apr 6, 2015
Last updated
Jul 11, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 11, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology Physician 2084N0400X 270871 MA
Neurology Physician 2084N0400X 167920 CA
Neurology Physician 2084N0400X MD483283 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

1635 Divisadero St Ste 520
San Francisco, CA 94115
Phone (415) 353-2311

Other practice location 2

4150 Clement St
San Francisco, CA 94121
Phone (415) 379-5530

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240402003661 PA Practitioner - Neurology 2769771385 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Neurology
Education
Northwestern University Feinberg Medical School, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University of Penn-Medical GroupGroup PAC ID 6204730955, 3,433 clinicians

Practice addresses (Care Compare)

330 S 9TH St
Neurology Pah
Philadelphia, PA 19107-6103
Phone (215) 662-3606

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
84.89 of 100Reported as group
Quality
81.13
Improvement activities
40
Cost
71.5

Merit-based Incentive Payment System (MIPS)

Final score
84.91 of 100Reported as group
Quality
73.58
Promoting interoperability
100
Improvement activities
40
Cost
76.13

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
167920CAMDNeurology Physician
270871MAMDNeurology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of California San Francisco Neurology CurrentSince Jul 1, 2020 Accepting new patients
UCSF Medical Group Business Services CurrentSince Jul 1, 2020 Accepting new patients
University of Penn-Medical Group Current Accepting new patients
UCSF Medical Group Business Services Neurology CurrentSince Jul 1, 2020 Accepting new patients
University of Penn-Medical Group CurrentSince May 1, 2024 Accepting new patients
University of California San Francisco CurrentSince Jul 1, 2020 Accepting new patients
University of California San Francisco Current Accepting new patients
University of Penn-Medical Group CurrentSince May 1, 2024 Accepting new patients
University of Penn - Medical Group Past Accepting new patients
The Pennsylvania Hospital of the University of Pennsylvania Health Sys Past Accepting new patients
Presbyterian Medical Center of the University of Pennsylvania Health S Past Accepting new patients
Trustees of the University of Pennsylvania Past Accepting new patients
University of California San Francisco Past Accepting new patients

Locations

1635 Divisadero St
Ste 520
San Francisco, CA 94115
Phone (415) 353-2311

2330 Post St
San Francisco, CA 94115
Phone (415) 502-4444

3333 California St
Ste S110
San Francisco, CA 94118

400 Parnassus Ave
#A632
San Francisco, CA 94143
Phone (415) 473-1000

3624 Market St
Fl 2
Philadelphia, PA 19104
Phone (215) 615-3669

3737 Market St
#8
Philadelphia, PA 19104

330 S 9th St
William Penn Annex West, PA 19107
Phone (215) 829-6500

Organizations & group practices 13

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

View all 13

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1428278400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752192000000",
    "number": "1174918122",
    "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": "1635 Divisadero St Ste 520",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "94115",
            "country_code": "US",
            "telephone_number": "415-353-2311",
            "fax_number": "415-353-9060",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4150 Clement St",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "94121",
            "country_code": "US",
            "telephone_number": "415-379-5530",
            "fax_number": "415-750-6662",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAMMER",
        "first_name": "LAUREN",
        "middle_name": "HART",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-04-06",
        "last_updated": "2025-07-11",
        "certification_date": "2025-07-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "MA",
            "license": "270871",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "CA",
            "license": "167920",
            "primary": false
        },
        {
            "code": "2084N0400X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Neurology",
            "state": "PA",
            "license": "MD483283",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Philadelphia, PA

Sources for this page

Verify at the official NPI Registry.