Active NPI
Daniel J Greenfield, M.D.
- Internal Medicine Physician
- Alliance, OH
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- 35.097384
- Practice address
- 200 E State St
Alliance, OH 44601-4936 - Phone
- (440) 552-7506
- NPI assigned
- Jun 23, 2008
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Hospitalist Physician | 208M00000X | 35.097384 | OH | |
| Internal Medicine Physician | 207R00000X | 35.097384 | OH | Primary |
Addresses
Primary practice location
200 E State St
Alliance, OH 44601-4936
Mailing address
200 E State St
Alliance, OH 44601-4936
Phone (440) 552-7506
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OH
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Clvlnd Clinic Lerner College of Med of Case WSTN RSV University, 2008
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
3700 Kolbe Rd
Lorain, OH 44053-1611
Phone (440) 960-4000
9500 Euclid Ave
Cleveland, OH 44195-0001
Phone (216) 444-5433
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 35.097384 | OH | MD | Hospitalist Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| The Cleveland Clinic Foundation | Current | Accepting new patients | |
| North East Ohio Group Practice LLC | Internal Medicine | Current | Accepting new patients |
| University Hospitals Medical Group Inc | Current | Accepting new patients | |
| Hni Medical Services of Ohio, LLC | Internal Medicine | Current | Accepting new patients |
| Community Hospitalist, LLC | Internal Medicine | Current | Accepting new patients |
Locations
9500 Euclid Ave
Cleveland, OH 44195
Phone (216) 442-1270
11100 Euclid Ave
Cleveland Heights, OH 44106
630 E River St
Elyria, OH 44035
Phone (440) 329-7450
3700 Kolbe Rd
Lorain, OH 44053
Phone (440) 331-9520
6780 Mayfield Rd
Mayfield Hts, OH 44124
Phone (440) 331-9520
18697 Bagley Rd
Middleburg Heights, OH 44130
Phone (440) 816-8000
1111 Hayes Ave
Sandusky, OH 44870
Phone (419) 557-7455
6801 Brecksville Rd
Ste 20
Seven Hills, OH 44131
Phone (216) 445-3363
29000 Center Ridge Rd
Westlake, OH 44145
Phone (440) 414-6046
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.
-
- General Acute Care Hospital
- Cleveland, OH
- NPI 1679525919
-
- Internal Medicine Physician
- Middleburg Heights, OH
- NPI 1356815922
-
- Internal Medicine Physician
- Middleburg Heights, OH
- NPI 1063575462
-
- Multi-Specialty Clinic/Center
- Cleveland, OH
- NPI 1669499414
Hospital & facility affiliations 9
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Avon, OH
- NPI 1346607017
-
- General Acute Care Hospital
- Cleveland, OH
- NPI 1215989611
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Tiffin, OH
- NPI 1154372381
Hospital
-
- General Acute Care Hospital
- Sandusky, OH
- NPI 1285392936
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Sandusky, OH
- NPI 1629028600
Hospital
-
- General Acute Care Hospital
- Sandusky, OH
- NPI 1801884655
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Norwalk, OH
- NPI 1992756118
Hospital
-
- General Acute Care Hospital
- Bellevue, OH
- NPI 1134161623
-
- General Acute Care Hospital
- Cleveland, OH
- NPI 1679525919
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1214179200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1754956800000",
"number": "1063673002",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "200 E STATE ST",
"city": "ALLIANCE",
"state": "OH",
"postal_code": "446014936",
"telephone_number": "440-552-7506"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "200 E STATE ST",
"city": "ALLIANCE",
"state": "OH",
"postal_code": "446014936",
"telephone_number": "440-552-7506"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GREENFIELD",
"first_name": "DANIEL",
"middle_name": "J",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2008-06-23",
"last_updated": "2025-08-12",
"certification_date": "2025-08-12",
"status": "A"
},
"taxonomies": [
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "OH",
"license": "35.097384",
"primary": false
},
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "OH",
"license": "35.097384",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Alliance, OH
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 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.