Active NPI
David E Geist, M.D.
- MOHS-Micrographic Surgery Physician
- Marlborough, MA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- MOHS-Micrographic Surgery Physician
- License
- 226095
- Practice address
- 201 Boston Post Rd W Ste 200&202
Marlborough, MA 01752-4667 - Phone
- (508) 460-9613
- Fax
- (978) 371-0522
- NPI assigned
- Aug 20, 2006
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 5
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.
-
- Dermatology Physician
- Concord, MA
- NPI 1285614834
Dermatology, MA
-
- General Acute Care Hospital
- Concord, MA
- NPI 1467587881
-
- Internal Medicine Physician
- Worcester, MA
- NPI 1760445373
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
Care Compare profile
Medicare Care Compare- Specialty
- Dermatology
- Education
- Yale University School of Medicine, 2003
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Adult and Pediatric Dermatology PC
Practice addresses (Care Compare)
54 Baker Ave Ext
Suite 305
Concord, MA 01742-2143
Phone (978) 371-7010
Hospital & facility affiliations
- Emerson Hospital -
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Melanoma (skin cancer) excision | 126 |
| Removal of skin lesions | 87 |
| Removal of skin cancer | 694 |
| Removal of nail tissue | 1-10 |
| Removal or shaving of skin growth | 1-10 |
| Skin biopsy | 36 |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Medicare enrollment records 1
Medicare enrollment files| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20070830000230 | MA | Practitioner - Dermatology | 9133212525 | Reassigns benefits to 1 organization |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 226095 | MA | MD | MOHS-Micrographic Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Adult & Pediatric Dermatology, P.C. | Dermatology | Current | Accepting new patients |
| Emerson Hospital | Current | Accepting new patients | |
| Apderm North, PC | Dermatology | Past | Accepting new patients |
| Apderm Massachusetts PC | Dermatology | Past | Accepting new patients |
| Umass Memorial Medical Group Inc | Past | Accepting new patients |
Locations
54 Baker Avenue Ext
Ste 305
Concord, MA 01742
54 Baker Avenue Ext
Ste 305306
Concord, MA 01742
Phone (351) 300-0110
201 Boston Post Rd W
Ste 200202
Marlborough, MA 01752
Phone (508) 460-9613
288 Grove St
Ste 201
Worcester, MA 01605
Phone (508) 552-3130
Interoperability endpoints
- geist.david.epho@direct.partners.masshiway.net
- dgeist31454@tuftsmedicine.direct-ci.com
Specialties & licenses 2
NPPES NPI Registry| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| MOHS-Micrographic Surgery Physician | 207ND0101X | 226095 | MA | Primary |
| Dermatology Physician | 207N00000X | 226095 | MA |
Addresses
NPPES NPI RegistryPrimary practice location
201 Boston Post Rd W Ste 200&202
Marlborough, MA 01752-4667
Mailing address
526 Main St Ste 302
Acton, MA 01720-3310
Phone (978) 371-7010
Other practice location 1
54 Baker Avenue Ext Ste 305
Concord, MA 01742-2143
Phone (978) 371-7010
Other practice location 2
86 Baker Avenue Ext Ste 100
Concord, MA 01742-2132
Phone (978) 371-7010
Other practice location 3
288 Grove St Ste 201
Worcester, MA 01605-3934
Phone (508) 552-3130
Other identifiers 1
NPPES NPI Registry| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2136121 | Medicaid | MA |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on Sep 11, 2026.
{
"created_epoch": "1156032000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789084800000",
"number": "1124133277",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "526 MAIN ST STE 302",
"city": "ACTON",
"state": "MA",
"postal_code": "017203310",
"telephone_number": "978-371-7010",
"fax_number": "978-371-0522"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "201 BOSTON POST RD W STE 200&202",
"city": "MARLBOROUGH",
"state": "MA",
"postal_code": "017524667",
"telephone_number": "508-460-9613",
"fax_number": "978-371-0522"
}
],
"practiceLocations": [
{
"address_1": "54 Baker Avenue Ext Ste 305",
"address_purpose": "LOCATION",
"city": "Concord",
"state": "MA",
"postal_code": "017422143",
"country_code": "US",
"telephone_number": "978-371-7010",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "86 Baker Avenue Ext Ste 100",
"address_purpose": "LOCATION",
"city": "Concord",
"state": "MA",
"postal_code": "017422132",
"country_code": "US",
"telephone_number": "978-371-7010",
"fax_number": "978-371-0522",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "288 Grove St Ste 201",
"address_purpose": "LOCATION",
"city": "Worcester",
"state": "MA",
"postal_code": "016053934",
"country_code": "US",
"telephone_number": "508-552-3130",
"fax_number": "978-371-0522",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "GEIST",
"first_name": "DAVID",
"middle_name": "E",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-08-20",
"last_updated": "2026-09-11",
"certification_date": "2026-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "207ND0101X",
"taxonomy_group": "",
"desc": "Dermatology, MOHS-Micrographic Surgery",
"state": "MA",
"license": "226095",
"primary": true
},
{
"code": "207N00000X",
"taxonomy_group": "",
"desc": "Dermatology",
"state": "MA",
"license": "226095",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "2136121",
"state": "MA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Marlborough, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.