Individual provider Active NPI

Matthew K Folstein, MD

  • Surgery Physician
  • Berlin, MD
National Provider Identifier
1952536674
Registry record updated Aug 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Surgery PhysicianTaxonomy code 208600000X
License
D0071433 Issued in MD
Practice address
10231 Old Ocean City Blvd Ste 207
Berlin, MD 21811-3568
Phone
(410) 641-9568
Fax
(410) 641-1006
NPI assigned
May 26, 2009
Last updated
Aug 5, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 5, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Surgery Physician 208600000X 01074919A IN
Surgery Physician 208600000X D0071433 MD Primary
Surgery Physician 208600000X 01074919 IN

Addresses

Primary practice location

10231 Old Ocean City Blvd Ste 207
Berlin, MD 21811-3568

Mailing address

10231 Old Ocean City Blvd Ste 207
Berlin, MD 21811-3568
Phone (410) 641-9568

Other practice location 1

9733 Healthway Dr
Berlin, MD 21811-1155
Phone (410) 641-1100

Other practice location 2

1373 E State Road 62 Ste 2C
Madison, IN 47250-7328
Phone (812) 801-0840

Other practice location 3

301 Gordon Gutmann Blvd Ste 401
Jeffersonville, IN 47130-3768
Phone (812) 282-0637

Other identifiers 2

IdentifierTypeStateIssuer
201308490MedicaidIN
7101141530MedicaidKY

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN
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
I20150807014766 IN Practitioner - General Surgery 8224342944 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
General Surgery
Education
University of Maryland School of Medicine, 2009
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Community Medical Associates IncGroup PAC ID 7012811284, 1,368 clinicians

Practice addresses (Care Compare)

1373 E State Rd
Madison, IN 47250-7328
Phone (812) 801-0840

611 E Douglas Rd
Mishawaka, IN 46545-1465
Phone (574) 335-6850

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy1-10
Hernia repair - groin (open)12
Hernia repair (minimally invasive)12
Upper gastrointestinal (GI) endoscopy for acid reflux1-10
Melanoma (skin cancer) excision1-10
Removal of tissue1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
01074919INMDSurgery Physician
01074919AINMDSurgery Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Saint Joseph Regional Medical Center, Inc. CurrentSince Jul 17, 2019 Accepting new patients
Saint Joseph Regional Medical Center, Inc. CurrentSince Jul 17, 2019 Accepting new patients

Locations

60205 Bodnar Blvd
Mishawaka, IN 46544
Phone (574) 232-2177

611 E Douglas Rd
Ste 207
Mishawaka, IN 46545
Phone (574) 335-6450

611 E Douglas Rd
Ste 309
Mishawaka, IN 46545
Phone (574) 335-6232

707 Cedar St
Ste 200
South Bend, IN 46617
Phone (574) 237-1328

707 Cedar St
Ste 405
South Bend, IN 46617

616 E 13th St
Winamac, IN 46996
Phone (574) 946-2100

Interoperability endpoints

  • Direct secure messaging: mfolstein1147809@direct.trinity-health.org

Organizations & group practices 3

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.

Hospital & facility affiliations 2

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": "1243296000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1952536674",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10231 OLD OCEAN CITY BLVD STE 207",
            "city": "BERLIN",
            "state": "MD",
            "postal_code": "218113568",
            "telephone_number": "410-641-9568"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10231 OLD OCEAN CITY BLVD STE 207",
            "city": "BERLIN",
            "state": "MD",
            "postal_code": "218113568",
            "telephone_number": "410-641-9568",
            "fax_number": "410-641-1006"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9733 Healthway Dr",
            "address_purpose": "LOCATION",
            "city": "Berlin",
            "state": "MD",
            "postal_code": "218111155",
            "country_code": "US",
            "telephone_number": "410-641-1100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1373 E State Road 62 Ste 2C",
            "address_purpose": "LOCATION",
            "city": "Madison",
            "state": "IN",
            "postal_code": "472507328",
            "country_code": "US",
            "telephone_number": "812-801-0840",
            "fax_number": "812-801-0024",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "301 Gordon Gutmann Blvd Ste 401",
            "address_purpose": "LOCATION",
            "city": "Jeffersonville",
            "state": "IN",
            "postal_code": "471303768",
            "country_code": "US",
            "telephone_number": "812-282-0637",
            "fax_number": "812-283-6330",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "FOLSTEIN",
        "first_name": "MATTHEW",
        "middle_name": "K",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-05-26",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IN",
            "license": "01074919A",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MD",
            "license": "D0071433",
            "primary": true
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IN",
            "license": "01074919",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "201308490",
            "state": "IN"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "7101141530",
            "state": "KY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Berlin, MD

Sources for this page

Verify at the official NPI Registry.