Active NPI
Alan Zajarias, MD
- Interventional Cardiology Physician
- Saint Louis, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Interventional Cardiology Physician
- License
- 2003015187
- Practice address
- 4921 Parkview PL
Div Im Cardiology, Ste 8B
Saint Louis, MO 63110-1032 - Phone
- (314) 362-1291
- Fax
- (314) 362-4278
- NPI assigned
- Apr 8, 2007
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Cardiovascular Disease Physician | 207RC0000X | 2003015187 | MO | |
| Interventional Cardiology Physician | 207RI0011X | 2003015187 | MO | Primary |
Addresses
Primary practice location
4921 Parkview PL
Div Im Cardiology, Ste 8B
Saint Louis, MO 63110-1032
Mailing address
660 S Euclid Ave
Saint Louis, MO 63110-1010
Phone (314) 362-1291
Other practice location 1
915 N Grand Blvd
Saint Louis, MO 63106-1621
Phone (314) 652-4100
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 200566602 | Medicaid | MO |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| FHIR URL | https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ | Washington University |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MO
- 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
- Interventional Cardiology
- Education
- Other, 2000
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1 Barnes Jew Hosp PLZ
Saint Louis, MO 63110-1003
Phone (314) 747-3000
1020 N Mason Rd
Saint Louis, MO 63141-6300
4921 Parkview PL
Saint Louis, MO 63110-1032
Hospital & facility affiliations
- Barnes Jewish Hospital
- Barnes-Jewish West County Hospital
- Memorial Hospital
- Christian Hospital Northeast
- Anderson Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 84.2 of 100
- Quality
- 71.6
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 75.75
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Coronary angioplasty and stenting | 20 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2003015187 | MO | MD | Interventional Cardiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Heart Care Institute LLC | Current | Accepting new patients | |
| Washington University | Current | Accepting new patients | |
| Washington University | Current | Accepting new patients | |
| Ozarks Medical Center | Past | Accepting new patients |
Locations
4921 Parkview Pl
Ste A
Saint Louis, MO 63110
Phone (314) 362-7145
1 Barnes Hospital Plz
Saint Louis, MO 63110
Phone (314) 362-9170
660 S Euclid Ave
#8015
Saint Louis, MO 63110
Phone (314) 286-1018
660 S Euclid Ave
Saint Louis, MO 63110
4921 Parkview Pl
Ste 8A
Saint Louis, MO 63110
Phone (314) 362-7841
660 S Euclid Ave
#C
Saint Louis, MO 63110
1020 N Mason Rd
Ste 210
Saint Louis, MO 63141
Phone (314) 996-3162
660 S Euclid Ave
#8086
Saint Louis, MO 63110
Phone (314) 362-1120
8 Millstone Campus Dr
Saint Louis, MO 63146
Phone (314) 273-4375
4921 Parkview Pl
Ste 8B
Saint Louis, MO 63110
Phone (314) 454-8917
915 N Grand Blvd
Saint Louis, MO 63106
Phone (314) 289-6434
Interoperability endpoints
- azajarias154157@direct.carenet.org
Organizations & group practices 4
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1992746903
-
- Cardiac Rehabilitation Clinic/Center
- Creve Coeur, MO
- NPI 1881975308
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1962442475
-
- General Acute Care Hospital
- West Plains, MO
- NPI 1831115641
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1649299827
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1831107895
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1639186760
-
- General Acute Care Hospital
- Maryville, IL
- NPI 1053481630
-
- General Acute Care Hospital
- Belleville, IL
- NPI 1982796181
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1175990400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757894400000",
"number": "1679696579",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "660 S EUCLID AVE",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631101010",
"telephone_number": "314-362-1291",
"fax_number": "314-362-4278"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4921 PARKVIEW PL",
"address_2": "DIV IM CARDIOLOGY, STE 8B",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631101032",
"telephone_number": "314-362-1291",
"fax_number": "314-362-4278"
}
],
"practiceLocations": [
{
"address_1": "915 N Grand Blvd",
"address_purpose": "LOCATION",
"city": "Saint Louis",
"state": "MO",
"postal_code": "631061621",
"country_code": "US",
"telephone_number": "314-652-4100",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ZAJARIAS",
"first_name": "ALAN",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2007-04-08",
"last_updated": "2025-09-15",
"certification_date": "2025-09-15",
"status": "A"
},
"taxonomies": [
{
"code": "207RC0000X",
"taxonomy_group": "",
"desc": "Internal Medicine, Cardiovascular Disease",
"state": "MO",
"license": "2003015187",
"primary": false
},
{
"code": "207RI0011X",
"taxonomy_group": "",
"desc": "Internal Medicine, Interventional Cardiology",
"state": "MO",
"license": "2003015187",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "200566602",
"state": "MO"
}
],
"endpoints": [
{
"endpointType": "FHIR",
"endpointTypeDescription": "FHIR URL",
"endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
"affiliation": "Y",
"affiliationName": "Washington University",
"address_1": "4921 Parkview Pl",
"address_2": "Div IM Cardiology, Ste 8B",
"city": "Saint Louis",
"state": "MO",
"country_code": "US",
"postal_code": "631101032",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Saint Louis, MO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 15, 2025; 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.