Active NPI
Gabriel Leigh Gallagher, M.D.
- Anesthesiology Physician
- Grand Rapids, MI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anesthesiology Physician
- License
- 4301518349
- Practice address
- 100 Michigan St NE
Grand Rapids, MI 49503-2560 - Phone
- (616) 391-1510
- NPI assigned
- Dec 9, 2008
- Last updated
- Oct 5, 2026
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Anesthesiology Physician | 207L00000X | 4301518349 | MI | Primary |
Addresses
Primary practice location
100 Michigan St NE
Grand Rapids, MI 49503-2560
Mailing address
100 Michigan St NE # Mc845
Grand Rapids, MI 49503-2560
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| FHIR URL | https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/R4/ | ||
| Direct Messaging Address | ggallagher3665745@epic00.corewelldirect.org |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- 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
- Anesthesiology
- Education
- Other, 2008
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
100 W California Blvd
Pasadena, CA 91105-3010
Phone (626) 440-9161
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A120671 | CA | MD | Anesthesiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Pacific Valley Medical Group | Anesthesiology | Current | Accepting new patients |
Locations
15503 Ventura Blvd
Ste 200
Encino, CA 91436
Phone (818) 788-7288
3160 Geneva St
Los Angeles, CA 90020
Phone (213) 368-3338
100 W California Blvd
Pasadena, CA 91105
Phone (626) 397-3445
2615 E Washington Blvd
Pasadena, CA 91107
Phone (626) 269-2601
333 S Arroyo Pkwy
Fl 3
Pasadena, CA 91105
Phone (626) 440-9161
55 Valley St
Pasadena, CA 91105
Phone (626) 397-8335
625 S Fair Oaks Ave
Ste 380
Pasadena, CA 91105
Phone (626) 229-8992
797 S Fair Oaks Ave
Pasadena, CA 91105
Phone (626) 535-2434
800 E Colorado Blvd
Ste 450
Pasadena, CA 91101
Phone (626) 289-2223
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Anesthesiology Physician
- Pasadena, CA
- NPI 1851312862
-
- Anesthesiology Physician
- Santa Barbara, CA
- NPI 1730287160
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Huntington Hospital
- General Acute Care Hospital
- Pasadena, CA
- NPI 1407828429
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1228780800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1791158400000",
"number": "1417192295",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "100 MICHIGAN ST NE # MC845",
"city": "GRAND RAPIDS",
"state": "MI",
"postal_code": "495032560"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "100 MICHIGAN ST NE",
"city": "GRAND RAPIDS",
"state": "MI",
"postal_code": "495032560",
"telephone_number": "616-391-1510"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GALLAGHER",
"first_name": "GABRIEL",
"middle_name": "LEIGH",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2008-12-09",
"last_updated": "2026-10-05",
"certification_date": "2026-10-05",
"status": "A"
},
"taxonomies": [
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "MI",
"license": "4301518349",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "FHIR",
"endpointTypeDescription": "FHIR URL",
"endpoint": "https://epicarr02.spectrumhealth.org/EpicFHIR/api/FHIR/R4/",
"affiliation": "N",
"address_1": "100 Michigan St NE",
"city": "Grand Rapids",
"state": "MI",
"country_code": "US",
"postal_code": "495032560",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "ggallagher3665745@epic00.corewelldirect.org",
"affiliation": "N",
"address_1": "100 Michigan St NE",
"city": "Grand Rapids",
"state": "MI",
"country_code": "US",
"postal_code": "495032560",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Grand Rapids, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 5, 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.