NPIMap

Individual provider Active NPI

Mark J Geller, MD

  • Cardiovascular Disease Physician
  • Blawnox, PA
National Provider Identifier
1396709069
Registry record updated Nov 19, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
MD029608E Issued in PA
Practice address
121 Freeport Rd Ste 200
Blawnox, PA 15238-3485
Phone
(412) 965-3335
Fax
(412) 487-1913
NPI assigned
Apr 12, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 19, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X MD029608E PA
Cardiovascular Disease Physician 207RC0000X MD029608E PA Primary
Interventional Cardiology Physician 207RI0011X MD-029608-E PA

Addresses

Primary practice location

121 Freeport Rd Ste 200
Blawnox, PA 15238-3485

Mailing address

121 Freeport Rd Ste 200
Blawnox, PA 15238-3485
Phone (412) 965-3335

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address mgeller10846@direct.ahn.org
Direct Messaging Address mgeller10846@direct.ahn.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100427000434 PA Practitioner - Cardiovascular Disease (Cardiology)Practitioner - Internal Medicine 6103953948 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)Also: Internal Medicine
Education
Albert Einstein College of Medicine of Yeshiva University, 1977
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

121 Freeport Rd
Suite 200
Blawnox, PA 15238-3485
Phone (412) 965-3335

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
93.9 of 100Reported as apm
Quality
85.02
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
MD-029608-EPAMDInterventional Cardiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mark J. Geller, MD, LLC Cardiovascular Disease CurrentSince Feb 13, 2019 Accepting new patients
Allegheny Clinic CurrentSince Jan 21, 2020 Accepting new patients
Allegheny Clinic Current Accepting new patients
Allegheny Clinic CurrentSince Jan 21, 2020 Accepting new patients
West Penn Allegheny Health System Inc. Past Accepting new patients
West Penn Allegheny Health System, Inc. Cardiovascular Disease Past Accepting new patients

Locations

121 Freeport Rd
Ste 200
Blawnox, PA 15238
Phone (412) 784-7180

62 Greenbriar Dr
Ste 1
Leechburg, PA 15656
Phone (724) 845-7765

1624 Pacific Ave
Ste B
Natrona Hts, PA 15065
Phone (412) 359-6444

2781 Leechburg Rd
New Kensington, PA 15068
Phone (724) 226-3345

4815 Liberty Ave
Ste 156
Pittsburgh, PA 15224
Phone (412) 578-4230

5140 Liberty Ave
Pittsburgh, PA 15224
Phone (412) 682-2100

4800 Friendship Ave
Pittsburgh, PA 15224
Phone (412) 359-3030

4815 Liberty Ave
Ste 234
Pittsburgh, PA 15224
Phone (412) 681-2790

4800 Friendship Ave
#4600N
Pittsburgh, PA 15224
Phone (412) 578-5442

5230 Centre Ave
Shadyside, PA 15232
Phone (412) 623-2167

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/19104/brand/1/csg/1/fhir/r4
  • Direct secure messaging: mgeller10846@direct.ahn.org
  • Direct secure messaging: mark.geller.1@19104.direct.athenahealth.com

Organizations & group practices 6

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.

Hospital & facility affiliations 16

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 16

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1144800000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763510400000",
    "number": "1396709069",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "121 FREEPORT RD STE 200",
            "city": "BLAWNOX",
            "state": "PA",
            "postal_code": "152383485",
            "telephone_number": "412-965-3335",
            "fax_number": "412-487-1913"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "121 FREEPORT RD STE 200",
            "city": "BLAWNOX",
            "state": "PA",
            "postal_code": "152383485",
            "telephone_number": "412-965-3335",
            "fax_number": "412-487-1913"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GELLER",
        "first_name": "MARK",
        "middle_name": "J",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-12",
        "last_updated": "2025-11-19",
        "certification_date": "2025-11-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MD029608E",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "PA",
            "license": "MD029608E",
            "primary": true
        },
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "PA",
            "license": "MD-029608-E",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgeller10846@direct.ahn.org",
            "affiliation": "N",
            "address_1": "4815 Liberty Ave Ste 156",
            "city": "Pittsburgh",
            "state": "PA",
            "country_code": "US",
            "postal_code": "152242156",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgeller10846@direct.ahn.org",
            "affiliation": "N",
            "address_1": "4815 Liberty Ave Ste 156",
            "city": "Pittsburgh",
            "state": "PA",
            "country_code": "US",
            "postal_code": "152242156",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Blawnox, PA

Sources for this page

Verify at the official NPI Registry.