Active NPI
James H. Saker, M.D.
- Clinical & Laboratory Immunology (Allergy & Immunology) Physician
- Lansing, MI
National Provider Identifier
1689645103
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical & Laboratory Immunology (Allergy & Immunology) Physician
- License
- JS022073
- Practice address
- 4169 Legacy Pkwy
Lansing, MI 48911-4258 - Phone
- (517) 394-6500
- Fax
- (517) 393-4202
- NPI assigned
- Feb 1, 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 |
|---|---|---|---|---|
| Clinical & Laboratory Immunology (Allergy & Immunology) Physician | 207KI0005X | JS022073 | MI | Primary |
Addresses
Primary practice location
4169 Legacy Pkwy
Lansing, MI 48911-4258
Mailing address
4169 Legacy Pkwy
Lansing, MI 48911-4258
Phone (517) 394-6500
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1268871 | Medicaid | MI |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1138752000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1689645103",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4169 LEGACY PKWY",
"city": "LANSING",
"state": "MI",
"postal_code": "489114258",
"telephone_number": "517-394-6500",
"fax_number": "517-393-4202"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4169 LEGACY PKWY",
"city": "LANSING",
"state": "MI",
"postal_code": "489114258",
"telephone_number": "517-394-6500",
"fax_number": "517-393-4202"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SAKER",
"first_name": "JAMES",
"middle_name": "H.",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-01",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "207KI0005X",
"taxonomy_group": "",
"desc": "Allergy & Immunology, Clinical & Laboratory Immunology",
"state": "MI",
"license": "JS022073",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "1268871",
"state": "MI"
}
],
"endpoints": [],
"other_names": []
}Other providers in Lansing, MI
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.