Active NPI
Michael W Chapman, MD
- Orthopaedic Surgery Physician
- Sacramento, CA
National Provider Identifier
1073553103
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Orthopaedic Surgery Physician
- License
- A20661
- Practice address
- 4860 Y St
3800
Sacramento, CA 95817-2307 - Phone
- (916) 734-5885
- Fax
- (916) 734-7904
- NPI assigned
- Jun 7, 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Orthopaedic Surgery Physician | 207X00000X | A20661 | CA | Primary |
Addresses
Primary practice location
4860 Y St
3800
Sacramento, CA 95817-2307
Mailing address
4860 Y St
3800
Sacramento, CA 95817-2307
Phone (916) 734-5885
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A20661 | CA | MD | Orthopaedic Surgery Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149638400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1073553103",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4860 Y ST",
"address_2": "3800",
"city": "SACRAMENTO",
"state": "CA",
"postal_code": "958172307",
"telephone_number": "916-734-5885",
"fax_number": "916-734-7904"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4860 Y ST",
"address_2": "3800",
"city": "SACRAMENTO",
"state": "CA",
"postal_code": "958172307",
"telephone_number": "916-734-5885",
"fax_number": "916-734-7904"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHAPMAN",
"first_name": "MICHAEL",
"middle_name": "W",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-07",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207X00000X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery",
"state": "CA",
"license": "A20661",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Sacramento, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.