NPIMap

Individual provider Active NPI

Lisa L Hamaker Dumin, M.D.

  • Endocrinology, Diabetes & Metabolism Physician
  • Collegeville, PA
National Provider Identifier
1003024811
Registry record updated May 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
MD426368 Issued in PA
Practice address
100 Market St Ste 300
Collegeville, PA 19426-4927
Phone
(484) 622-6401
Fax
(484) 622-6403
NPI assigned
May 18, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 18, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X MD426368 PA Primary

Addresses

Primary practice location

100 Market St Ste 300
Collegeville, PA 19426-4927

Mailing address

346 Belrose LN
Wayne, PA 19087-4417

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
I20080714000144 PA Practitioner - EndocrinologyPractitioner - Internal Medicine 9234201922 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
EndocrinologyAlso: Internal Medicine
Education
Pennsylvania State University College of Medicine, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Fornance Physician Services IncGroup PAC ID 8527962661, 105 clinicians
Penn State Health Medical Group LLCGroup PAC ID 8729351077, 720 clinicians

Practice addresses (Care Compare)

100 Market St
Suite 300
Collegeville, PA 19426-4927
Phone (484) 622-6400

890 Poplar Church Rd
Camp Hill, PA 17011-2250
Phone (717) 972-7120

Hospital & facility affiliations

  • Jefferson Einstein Montgomery Hospital Hospital, East Norriton, PA, CCN 390329
  • Hospital of Univ of Pennsylvania Hospital, Philadelphia, PA, CCN 390111
  • Paoli Hospital Hospital, Paoli, PA, CCN 390153
  • Phoenixville Hospital Hospital, Phoenixville, PA, CCN 390127

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Fornance Physician Services, Inc. CurrentSince Jan 1, 2012 Accepting new patients
Einstein Practice Plan Inc CurrentSince Jan 1, 2026 Accepting new patients
Fornance Physician Services, Inc. CurrentSince Jan 1, 2012 Accepting new patients
Einstein Practice Plan Inc CurrentSince Jan 1, 2026 Accepting new patients
Fornance Physician Services, Inc Current Accepting new patients

Locations

100 Market St
Ste 300
Collegeville, PA 19426
Phone (484) 622-6400

210 Mall Blvd
Ste 101
King of Prussia, PA 19406
Phone (610) 233-3693

210 Mall Blvd
Ste G03
King of Prussia, PA 19406
Phone (610) 233-3699

15 W Wood St
Ste 301
Norristown, PA 19401
Phone (610) 275-5958

1330 Powell St
Ste 308
Norristown, PA 19401
Phone (484) 622-7371

5401 Old York Rd
Ste 331
Philadelphia, PA 19141
Phone (215) 456-6948

633 W Germantown Pike
Ste 105
Plymouth Mtng, PA 19462
Phone (610) 941-6799

Interoperability endpoints

  • Direct secure messaging: lisa.hamaker@direct.einstein.edu

Organizations & group practices 7

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

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": "1179446400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779062400000",
    "number": "1003024811",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "346 BELROSE LN",
            "city": "WAYNE",
            "state": "PA",
            "postal_code": "190874417"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 MARKET ST STE 300",
            "city": "COLLEGEVILLE",
            "state": "PA",
            "postal_code": "194264927",
            "telephone_number": "484-622-6401",
            "fax_number": "484-622-6403"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HAMAKER DUMIN",
        "first_name": "LISA",
        "middle_name": "L",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-05-18",
        "last_updated": "2026-05-18",
        "certification_date": "2026-05-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "PA",
            "license": "MD426368",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Collegeville, PA

Sources for this page

Verify at the official NPI Registry.