Michael William Nash, M.D.
Individual provider Active NPI Family Medicine Physician · Saint Louis, MO
NPI 1376577825 · NPPES record last updated Jul 21, 2026
Key facts
- NPI
- 1376577825
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Family Medicine Physician 207Q00000X
- License
- 2017029652 (MO)
- Practice address
- 3637 S Geyer Rd
Saint Louis, MO 63127-1203 - Phone
- (314) 525-1887
- Fax
- (314) 525-1868
- NPI assigned
- Jul 10, 2006
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 18
Hospital & facility affiliations 16
Owned or controlled facilities with NPI records 2
Medicare Care Compare profile
- Specialty
- Family Practice
- Education
- Saint Louis University School of Medicine, 2003
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Mercy Clinic East Communities
Practice addresses (Care Compare)
901 Patients 1St Dr
Suite 2742
Washington, MO 63090-4700
Phone (636) 239-8825
Hospital & facility affiliations
- Delmar Gardens Home Care Inc
- Mercy Hospice
- Preferred Hospice of Missouri (Northeast)
- New Haven Hospice Care, Inc
- Alternative Hospice, LLC
- St Croix Hospice
- Missouri Baptist Sullivan Hospital
- Mercy Hospital Jefferson
- Christian Hospital Northeast
- Crystal Oaks
- Meramec Nursing
- Grandview Healthcare Center
- Cuba Manor Inc
- Bethesda Southgate
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled (2 enrollments) in IL, MO
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes
All facility ownership & control disclosures 2
| Facility | Type | Role | Since |
|---|---|---|---|
| Crystal Oaks |
Skilled nursing facility | Operational/Managerial Control Adp of the SNF |
Dec 1, 2022 Jul 21, 2025 |
| St. Peters Post Acute |
Skilled nursing facility | Operational/Managerial Control Adp of the SNF |
Mar 1, 2024 Mar 1, 2024 |
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20070212000373 | IL | Practitioner - Family Practice | 8325040942 | |
| I20170907000777 | MO | Practitioner - Family Practice | 8325040942 | Reassigns benefits to 3 organizations |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036-115521 | IL | MD | Family Medicine Physician |
| 2017029652 | MO | MD | Family Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Mercy Clinic East Communities | Family Medicine | Current | Accepting new patients |
| Mercy Clinic East Communities | Family Medicine | Current |
Accepting new patients |
| Physician Groups LC | Family Medicine | Current |
Accepting new patients |
| Mercy Clinic East Communities | Family Medicine | Current |
Accepting new patients |
| Physician Groups LC | Current |
Accepting new patients | |
| Pacific Manor LLC | Past | Accepting new patients | |
| Cuba Manor, Inc. | Past | Accepting new patients | |
| Bel Oak of Meramec LLC | Past | Accepting new patients | |
| Sullivan Operations, LLC | Past | Accepting new patients | |
| Washington N & R, LLC | Past | Accepting new patients | |
| Crystal Oaks Nursing and Rehab LLC | Past | Accepting new patients | |
| Delmar Gardens North Operating, LLC | Past | Accepting new patients | |
| Community Care Ctr of Sullivan, Inc | Past | Accepting new patients | |
| Bethesda Long Term Care, Inc. | Past | Accepting new patients |
Locations
1 Memorial Dr
Alton, IL 62002
Phone (618) 463-7240
4315 Memorial Dr
Belleville, IL 62226
Phone (618) 257-5060
2630 Highway K
O Fallon, MO 63368
Phone (636) 240-5454
3009 N Ballas Rd
Ste 383C
Saint Louis, MO 63131
Phone (314) 305-1447
621 S New Ballas Rd
Ste 189A
Saint Louis, MO 63141
Phone (314) 251-6335
621 S New Ballas Rd
Ste 6017B
Saint Louis, MO 63141
Phone (314) 251-4652
3637 S Geyer Rd
Saint Louis, MO 63127
Phone (314) 251-4659
621 S New Ballas Rd
Ste 4017B
Saint Louis, MO 63141
Phone (314) 872-9192
901 Patients First Dr
Ste 2742
Washington, MO 63090
Phone (636) 239-8825
851 E 5th St
Ste 328
Washington, MO 63090
Phone (636) 239-1101
Interoperability endpoints
- micael.nash@ccrh.directbygreenway.com
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 2017029652 | MO | Yes |
| Family Medicine Physician | 207Q00000X | 036-115521 | IL |
Addresses
Primary practice location
3637 S Geyer Rd
Saint Louis, MO 63127-1203
Mailing address
3637 S Geyer Rd
Saint Louis, MO 63127-1203
Phone (314) 525-1887
Other practice location 1
901 Patients First Dr Ste 2742
Washington, MO 63090-4700
Phone (636) 239-8825
NPI Registry JSON
{
"created_epoch": "1152489600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784592000000",
"number": "1376577825",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3637 S GEYER RD",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631271203",
"telephone_number": "314-525-1887",
"fax_number": "314-525-1868"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3637 S GEYER RD",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631271203",
"telephone_number": "314-525-1887",
"fax_number": "314-525-1868"
}
],
"practiceLocations": [
{
"address_1": "901 Patients First Dr Ste 2742",
"address_purpose": "LOCATION",
"city": "Washington",
"state": "MO",
"postal_code": "630904700",
"country_code": "US",
"telephone_number": "636-239-8825",
"fax_number": "636-390-5595",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "NASH",
"first_name": "MICHAEL",
"middle_name": "WILLIAM",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-07-10",
"last_updated": "2026-07-21",
"certification_date": "2026-07-21",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "MO",
"license": "2017029652",
"primary": true
},
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "IL",
"license": "036-115521",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Saint Louis, MO
- Shahida R Naseer
- Alison Carole Nash
- Heather Nash
- John A Nash
- Maria Nash
- Patricia Lynn Nash
- Sydney Alexandra Nash
- Ahmad Basil Nasir
- Amana N Nasir
- Zeeshan Nasir
All providers in Saint Louis, MO · Family Medicine Physician in Missouri
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Jul 21, 2026. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- CMS facility enrollments, All Owners and change-of-ownership files: CCNs, owners and managing parties.
- Provider of Services files (CMS): certification status, beds and related CCNs.
- Order and Referring (CMS).
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.