Active NPI
John C Greenawalt, M.D.
- Internal Medicine Physician
- Baltimore, MD
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- D60248
- Practice address
- 6701 N Charles St
Dept of Medicine RM 4890
Baltimore, MD 21204-6808 - Phone
- (443) 849-8046
- NPI assigned
- Aug 4, 2006
- 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 |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | D60248 | MD | Primary |
| Hospitalist Physician | 208M00000X | D60248 | MD |
Addresses
Primary practice location
6701 N Charles St
Dept of Medicine RM 4890
Baltimore, MD 21204-6808
Mailing address
PO Box 631568
Baltimore, MD 21263-1568
Other identifiers 3
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 402522900 | Medicaid | MD | |
| S138-0067 | Other | MD | CAREFIRST REGIONAL |
| KJ15GB/62225001 | Other | MD | CAREFIRST MARYLAND |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MD
- 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
- Other, 2000
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
3701 N Charles St
South Chapman Building Suite 102
Towson, MD 21204-6808
6565 N Charles St
Baltimore, MD 21204-5805
6565 N Charles St
Baltimore, MD 21204-6808
6565 N Charles Street
201 Pulmonary Medicine at GBMC
Baltimore, MD 21204-5805
Phone (443) 849-3901
6569 N Charles St
Suite 505
Baltimore, MD 21204-6808
Phone (443) 849-2658
6569 N Charles St PPW Room
307 GYN Specialists
Baltimore, MD 21204-6808
Phone (443) 849-6123
6569 N Charles Street
504 Hoover Low Vision GBMC
Baltimore, MD 21204-6808
Phone (443) 849-2658
6701 N Charles St
Baltamore, MD 21204-6808
6701 N Charles St BLDG
S Chapman BLDG Suite 102
Baltimore, MD 21204-6808
6701 N Charles St Unit
Baltimore, MD 21204-6808
Phone (443) 849-3131
Hospital & facility affiliations
- Greater Baltimore Medical Center
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| D60248 | MD | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Greater Baltimore Medical Center, Inc. | Internal Medicine | Current | Accepting new patients |
| Greater Baltimore Medical Center, Inc. | Current | Accepting new patients | |
| Greater Baltimore Medical Center, Inc | Current | Accepting new patients | |
| Greater Baltimore Medical Center, Inc. | Past | Accepting new patients |
Locations
6701 N Charles St
Rm 4890
Baltimore, MD 21204
Phone (410) 512-8919
6565 N Charles St
Ste 203
Towson, MD 21204
Phone (410) 828-3760
6569 N Charles St
Ste 505
Towson, MD 21204
Phone (443) 849-2196
Interoperability endpoints
- jgreenawalt7984@gbmcdirect.org
Ownership & related parties
All facility ownership & control disclosures 1
Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.
| Facility | Type | Role | Since |
|---|---|---|---|
| GBMC, Inc | Hospital | Corporate Officer Corporate Director |
Jul 1, 2020 Jul 1, 2020 |
Owned or controlled facilities with NPI records 1
Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.
-
- General Acute Care Hospital
- Baltimore, MD
- NPI 1255372397
Corporate Director, Corporate Officer
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.
-
- Obstetrics & Gynecology Physician
- Baltimore, MD
- NPI 1891855763
-
- Hospitalist Physician
- Baltimore, MD
- NPI 1275578106
Internal Medicine
-
- Sleep Medicine (Internal Medicine) Physician
- Baltimore, MD
- NPI 1538029731
-
- Medical Oncology Physician
- Baltimore, MD
- NPI 1235167297
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Baltimore, MD
- NPI 1255372397
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1154649600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1184284800000",
"number": "1699783795",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 631568",
"city": "BALTIMORE",
"state": "MD",
"postal_code": "212631568"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6701 N CHARLES ST",
"address_2": "DEPT OF MEDICINE RM 4890",
"city": "BALTIMORE",
"state": "MD",
"postal_code": "212046808",
"telephone_number": "443-849-8046"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GREENAWALT",
"first_name": "JOHN",
"middle_name": "C",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-08-04",
"last_updated": "2007-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "MD",
"license": "D60248",
"primary": true
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "MD",
"license": "D60248",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "402522900",
"state": "MD"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "CAREFIRST REGIONAL",
"identifier": "S138-0067",
"state": "MD"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "CAREFIRST MARYLAND",
"identifier": "KJ15GB/62225001",
"state": "MD"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Baltimore, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2007; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data; 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.