Active NPI
Jason Adrian Adler, MD
- Hematology & Oncology Physician
- South Portland, ME
National Provider Identifier
1194252148
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- MD29407
- Practice address
- 265 Western Ave Ste 2
South Portland, ME 04106-2458 - Phone
- (207) 661-0200
- Fax
- (207) 661-0299
- NPI assigned
- May 20, 2017
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 271511 | MA | |
| Internal Medicine Physician | 207R00000X | MD29407 | ME | |
| Hematology & Oncology Physician | 207RH0003X | MD29407 | ME | Primary |
Addresses
Primary practice location
265 Western Ave Ste 2
South Portland, ME 04106-2458
Mailing address
265 Western Ave Ste 2
South Portland, ME 04106-2458
Phone (207) 661-0200
Other practice location 1
800 Washington St
Boston, MA 02111-1552
Phone (617) 636-5000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in ME
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20250708001194 | ME | Practitioner - Hematology/Oncology | 1355614520 | Reassigns benefits to 1 organization |
Care Compare profile
Medicare Care Compare- Specialty
- Hematology/Oncology
- Education
- University of Connecticut School of Medicine, 2017
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Mainehealth
Practice addresses (Care Compare)
100 Campus Dr
Scarborough, ME 04074-7172
22 Bramhall St
Portland, ME 04102-3134
Phone (207) 885-9905
265 Western Ave
Suite 2
South Portland, ME 04106-2458
Phone (207) 396-7606
Hospital & facility affiliations
- Mainehealth Maine Medical Center
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD29407 | ME | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| The Metrohealth System | Current | Accepting new patients | |
| Mainehealth | Current | Accepting new patients | |
| Mainehealth | Current | Accepting new patients | |
| Mainehealth | Current | Accepting new patients |
Locations
22 Bramhall St
Portland, ME 04102
Phone (207) 662-2179
265 Western Ave
Ste 2
South Portland, ME 04106
Phone (207) 661-0200
Interoperability endpoints
- jadler921274@direct.mmc.mainehealth.org
- jadler223025@direct.metrohealth.org
- jadler36809@ehrdirect.uhhospitals.org
Organizations & group practices 4
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.
-
- Community/Retail Pharmacy
- Portland, ME
- NPI 1013868181
-
- General Acute Care Hospital
- Farmington, ME
- NPI 1609356419
-
- General Acute Care Hospital
- Cleveland, OH
- NPI 1700828852
Hospital & facility affiliations 36
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": "1495238400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1750723200000",
"number": "1194252148",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "265 WESTERN AVE STE 2",
"city": "SOUTH PORTLAND",
"state": "ME",
"postal_code": "041062458",
"telephone_number": "207-661-0200",
"fax_number": "207-661-0299"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "265 WESTERN AVE STE 2",
"city": "SOUTH PORTLAND",
"state": "ME",
"postal_code": "041062458",
"telephone_number": "207-661-0200",
"fax_number": "207-661-0299"
}
],
"practiceLocations": [
{
"address_1": "800 Washington St",
"address_purpose": "LOCATION",
"city": "Boston",
"state": "MA",
"postal_code": "021111552",
"country_code": "US",
"telephone_number": "617-636-5000",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ADLER",
"first_name": "JASON",
"middle_name": "ADRIAN",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2017-05-20",
"last_updated": "2025-06-24",
"certification_date": "2025-06-24",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "MA",
"license": "271511",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "ME",
"license": "MD29407",
"primary": false
},
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "ME",
"license": "MD29407",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in South Portland, ME
- Robert B Abrahamsen, M.D.
- Michael A Abramski, LMT
- Andres Abreu, MD
- Jason Ackley, PT
- Ruby E Adams
- Admiral Home Care Services, Inc.
- Nicholas M Adriance, PT, DPT, ATC, CSCS
- Advance Orthotic Prosthetic Services, Inc
- Advanced Clinical Eyecare of Southern Maine, P.C.
- Advanced Orthopaedics and Sports Medicine, LLC
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 2025; 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.