Active NPI
Maher O Ayyash, MD
- Psychiatry Physician
- Pittsburgh, PA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- MD419179
- Practice address
- 3811 Ohara St
Suite 1135-E
Pittsburgh, PA 15213-2561 - Phone
- (412) 624-1000
- NPI assigned
- Feb 2, 2006
- 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 |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | MD419179 | PA | Primary |
Addresses
Primary practice location
3811 Ohara St
Suite 1135-E
Pittsburgh, PA 15213-2561
Mailing address
2605 Dogwood CT
Wexford, PA 15090-7700
Phone (412) 777-6420
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 001927358 | Medicaid | PA |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | mayyash1040773@upmc.direct-ci.com |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in PA
- 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
- Psychiatry
- Education
- Other, 1981
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
3811 Ohara St
Pittsburgh, PA 15213-2561
Phone (412) 624-1000
620 Howard Ave
Altoona, PA 16601-4804
Phone (814) 889-2328
Hospital & facility affiliations
- Upmc Altoona
- Upmc McKeesport Hospital
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Valley Medical Facilities, Inc. | Current | Accepting new patients | |
| University of Pittsburgh Physicians | Current | Accepting new patients | |
| Valley Medical Facilities, Inc. | Current | Accepting new patients | |
| Invision Integrated Behavioral Health | Psychiatry | Current | Accepting new patients |
| Catawba Valley Medical Center | Psychiatry | Past | Accepting new patients |
| Valley Medical Facilities, Inc | Past | Accepting new patients | |
| Catawba Valley Medical Center | Past | Accepting new patients |
Locations
200 Ohio River Blvd
Baden, PA 15005
27 Heckel Rd
Ste 206
Mc Kees Rocks, PA 15136
Phone (412) 777-4314
2 Hot Metal St
#One
Pittsburgh, PA 15203
Phone (412) 432-5864
107 Mount Nebo Rd
Pittsburgh, PA 15237
Phone (412) 247-7500
720 Blackburn Rd
Sewickley, PA 15143
Phone (412) 741-6600
12450 Perry Hwy
Wexford, PA 15090
Phone (724) 933-2961
Interoperability endpoints
- mayyash1040773@upmc.direct-ci.com
- maherayyash@hvhs.allscriptsdirect.net
Organizations & group practices 7
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.
-
- Gastroenterology Physician
- Pittsburgh, PA
- NPI 1619935004
-
- Mental Health Clinic/Center (Including Community Mental Health Center)
- Sewickley, PA
- NPI 1528101458
-
- General Acute Care Hospital
- Beaver Falls, PA
- NPI 1023830981
-
- Psychiatric Hospital Unit
- MC Kees Rocks, PA
- NPI 1326339862
-
- Psychiatry Physician
- Hickory, NC
- NPI 1497792469
-
- Health Educator
- Hickory, NC
- NPI 1518524818
Hospital & facility affiliations 8
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Altoona, PA
- NPI 1649278730
-
- Psychiatric Hospital Unit
- Altoona, PA
- NPI 1699773465
-
- Substance Use Disorder Rehabilitation Hospital Unit
- McKeesport, PA
- NPI 1043703531
-
- General Acute Care Hospital
- McKeesport, PA
- NPI 1194734798
-
- Psychiatric Hospital Unit
- McKeesport, PA
- NPI 1659381275
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1138838400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788307200000",
"number": "1467424887",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2605 DOGWOOD CT",
"city": "WEXFORD",
"state": "PA",
"postal_code": "150907700",
"telephone_number": "412-777-6420",
"fax_number": "412-777-6419"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3811 OHARA ST",
"address_2": "SUITE 1135-E",
"city": "PITTSBURGH",
"state": "PA",
"postal_code": "152132561",
"telephone_number": "412-624-1000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "AYYASH",
"first_name": "MAHER",
"middle_name": "O",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-02-02",
"last_updated": "2026-09-02",
"certification_date": "2025-12-22",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "PA",
"license": "MD419179",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "001927358",
"state": "PA"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "mayyash1040773@upmc.direct-ci.com",
"affiliation": "N",
"address_1": "600 Grant St",
"address_2": "Floor 58",
"city": "Pittsburgh",
"state": "PA",
"country_code": "US",
"postal_code": "152192702",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Pittsburgh, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 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.