Active NPI
Margaret Suzanne Fowler, PHD
- Sleep Medicine (Psychiatry & Neurology) Physician
- Tularosa, NM
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Sleep Medicine (Psychiatry & Neurology) Physician
- License
- 1175
- Practice address
- 47 Shinkle Rd
Tularosa, NM 88352-9522 - Phone
- (575) 491-3711
- NPI assigned
- Mar 30, 2007
- Last updated
- Mar 6, 2026
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Psychologist | 103TC0700X | 1175 | NM | |
| Sleep Specialist (PhD) | 173F00000X | 1175 | NM | |
| Sleep Medicine (Psychiatry & Neurology) Physician | 2084S0012X | 1175 | NM | Primary |
Addresses
Primary practice location
47 Shinkle Rd
Tularosa, NM 88352-9522
Mailing address
869 16-Springs Canyon Road
Cloudcroft, NM 88317
Phone (575) 491-3711
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 24132268 | Medicaid | NM |
Other names 1
- Margaret Suzanne Ruyak
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NM
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine, Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 1175 | NM | MD | Pain Clinic/Center |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Otero County Hospital Association | Current | Accepting new patients | |
| Sleep Lab of Las Cruces LLC | Current | Accepting new patients | |
| Otero County Hospital Association | Current | Accepting new patients |
Locations
2669 Scenic Dr
Alamogordo, NM 88310
Phone (505) 439-6100
2437 S Telshor Blvd
Las Cruces, NM 88011
Phone (505) 522-2777
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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba CHRISTUS Southern New Mexico
- General Acute Care Hospital
- Alamogordo, NM
- NPI 1861450579
-
- Sleep Medicine (Internal Medicine) Physician
- Las Cruces, NM
- NPI 1528460029
-
dba CHRISTUS Pharmacy (Downtown)
- Community/Retail Pharmacy
- Alamogordo, NM
- NPI 1235948803
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1175212800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1772755200000",
"number": "1386764728",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "869 16-SPRINGS CANYON ROAD",
"city": "CLOUDCROFT",
"state": "NM",
"postal_code": "88317",
"telephone_number": "575-491-3711"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "47 SHINKLE RD",
"city": "TULAROSA",
"state": "NM",
"postal_code": "883529522",
"telephone_number": "575-491-3711"
}
],
"practiceLocations": [],
"basic": {
"last_name": "FOWLER",
"first_name": "MARGARET",
"middle_name": "SUZANNE",
"credential": "PHD",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2007-03-30",
"last_updated": "2026-03-06",
"certification_date": "2026-03-06",
"status": "A"
},
"taxonomies": [
{
"code": "103TC0700X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical",
"state": "NM",
"license": "1175",
"primary": false
},
{
"code": "173F00000X",
"taxonomy_group": "",
"desc": "Sleep Specialist, PhD",
"state": "NM",
"license": "1175",
"primary": false
},
{
"code": "2084S0012X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Sleep Medicine",
"state": "NM",
"license": "1175",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "24132268",
"state": "NM"
}
],
"endpoints": [],
"other_names": [
{
"first_name": "MARGARET",
"last_name": "RUYAK",
"middle_name": "SUZANNE",
"credential": "MS",
"code": "5",
"type": "Other Name"
}
]
}
Other providers in Tularosa, NM
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 6, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.