Active NPI
Brandon Justin Blau, MD
- Rheumatology Physician
- Philadelphia, PA
National Provider Identifier
1770002024
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Rheumatology Physician
- License
- MD493773
- Practice address
- 800 Walnut St FL 9
Philadelphia, PA 19107-5176 - Phone
- (215) 662-4333
- NPI assigned
- Sep 18, 2017
- Last updated
- Jun 3, 2026
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Rheumatology Physician | 207RR0500X | MD493773 | PA | Primary |
Addresses
Primary practice location
800 Walnut St FL 9
Philadelphia, PA 19107-5176
Mailing address
800 Walnut St FL 9
Philadelphia, PA 19107-5176
Phone (215) 662-4333
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in PA
- 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 |
|---|---|---|---|---|
| I20260614000003 | PA | Practitioner - Internal Medicine | 6305318007 |
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Other, 2019
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- University of Penn-Medical Group
Practice addresses (Care Compare)
800 Walnut St 9TH Floor
Penn Rheumatology Washington Square
Philadelphia, PA 19107-5176
Phone (215) 662-4333
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD493773 | PA | MD | Rheumatology Physician |
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Phila, PA
- NPI 1063489342
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1505692800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1780444800000",
"number": "1770002024",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "800 WALNUT ST FL 9",
"city": "PHILADELPHIA",
"state": "PA",
"postal_code": "191075176",
"telephone_number": "215-662-4333"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "800 WALNUT ST FL 9",
"city": "PHILADELPHIA",
"state": "PA",
"postal_code": "191075176",
"telephone_number": "215-662-4333"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BLAU",
"first_name": "BRANDON",
"middle_name": "JUSTIN",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2017-09-18",
"last_updated": "2026-06-03",
"certification_date": "2026-06-03",
"status": "A"
},
"taxonomies": [
{
"code": "207RR0500X",
"taxonomy_group": "",
"desc": "Internal Medicine, Rheumatology",
"state": "PA",
"license": "MD493773",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Philadelphia, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 3, 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.