Active NPI
John William Stelzer, MD
- Pediatric Orthopaedic Surgery Physician
- Philadelphia, PA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Orthopaedic Surgery Physician
- License
- 79207
- Practice address
- 3401 Civic Center Blvd
Division of Pediatric Orthopaedic Surgery
Philadelphia, PA 19104 - Phone
- (267) 590-1527
- NPI assigned
- Mar 26, 2019
- 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 |
|---|---|---|---|---|
| Pediatric Orthopaedic Surgery Physician | 207XP3100X | 79207 | CT | Primary |
Addresses
Primary practice location
3401 Civic Center Blvd
Division of Pediatric Orthopaedic Surgery
Philadelphia, PA 19104
Mailing address
282 Washington St
Hartford, CT 06106-3322
Phone (860) 545-9000
Other practice location 1
282 Washington St
Hartford, CT 06106-3322
Phone (860) 545-9000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CT
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Connecticut Children'S Specialty Group, Inc. | Current | Accepting new patients | |
| Connecticut Children'S Specialty Group, Inc. | Current | Accepting new patients | |
| Connecticut Children'S Medical Center | Past | Accepting new patients |
Locations
105 Newtown Rd
#A
Danbury, CT 06810
Phone (860) 545-9395
263 Farmington Ave
Farmington, CT 06030
Phone (860) 679-4477
505 Farmington Ave
Farmington, CT 06032
Phone (860) 837-6700
399 Farmington Ave
Fl 3
Farmington, CT 06032
Phone (860) 284-0235
399 Farmington Ave
Ste 300
Farmington, CT 06032
Phone (860) 284-0220
310 Western Blvd
Glastonbury, CT 06033
Phone (860) 837-9877
10 Columbus Blvd
Fl 4
Hartford, CT 06106
Phone (860) 837-5560
10 Columbus Blvd
Hartford, CT 06106
Phone (860) 837-5619
31 Seymour St
Fl 4
Hartford, CT 06106
282 Washington St
Hartford, CT 06106
Phone (860) 545-8950
1281 E Main St
Ste 3
Stamford, CT 06902
Phone (860) 545-9200
191 Post Rd W
#1
Westport, CT 06880
Organizations & group practices 3
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.
-
- Pediatrics Physician
- Hartford, CT
- NPI 1669448882
-
- Ophthalmology Physician
- Glastonbury, CT
- NPI 1568056984
-
- End-Stage Renal Disease (ESRD) Treatment Clinic/Center
- Hartford, CT
- NPI 1578106951
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1553558400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1754438400000",
"number": "1225599004",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "282 WASHINGTON ST",
"city": "HARTFORD",
"state": "CT",
"postal_code": "061063322",
"telephone_number": "860-545-9000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3401 CIVIC CENTER BLVD",
"address_2": "DIVISION OF PEDIATRIC ORTHOPAEDIC SURGERY",
"city": "PHILADELPHIA",
"state": "PA",
"postal_code": "19104",
"telephone_number": "267-590-1527"
}
],
"practiceLocations": [
{
"address_1": "282 Washington St",
"address_purpose": "LOCATION",
"city": "Hartford",
"state": "CT",
"postal_code": "061063322",
"country_code": "US",
"telephone_number": "860-545-9000",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "STELZER",
"first_name": "JOHN",
"middle_name": "WILLIAM",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2019-03-26",
"last_updated": "2025-08-06",
"certification_date": "2025-08-06",
"status": "A"
},
"taxonomies": [
{
"code": "207XP3100X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery, Pediatric Orthopaedic Surgery",
"state": "CT",
"license": "79207",
"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 Aug 6, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.