Mary Ellen Robertson, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

RN296245L Issued in PA

Practice address

1 Hospital Dr
Clarion, PA 16214-8501

Phone

(814) 226-9500

NPI assigned

Feb 22, 2006

Last updated

Dec 9, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Other names 1

• Ms. Mary Ellen Sichak Former name

Medicare fee-for-service enrollment

Enrolled in PA

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Clarion HospitalGroup PAC ID 7618923293, 6 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Independence Health System Clarion Hospital Hospital, Clarion, PA, CCN 390093

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Registered Nurse

Practice roles

Locations

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.

• Clarion Hospital

  • General Acute Care Hospital
  • Clarion, PA
  • NPI 1023049368
  Medicare reassignment Care Compare group NPD
• Elk Regional Health Center

  dba Penn Highlands Elk Anesthesia Services

  • Anesthesiology Physician
  • Saint Marys, PA
  • NPI 1326427196

  Nurse Anesthetist, Certified Registered

  Medicare reassignment NPD
• University of Pittsburgh Physicians

  • Gastroenterology Physician
  • Pittsburgh, PA
  • NPI 1619935004
  Medicare reassignment NPD
• Upmc Kane

  • General Acute Care Hospital
  • Kane, PA
  • NPI 1861478307
  Medicare reassignment NPD
• Clarion Hospital

  • General Acute Care Hospital
  • Clarion, PA
  • NPI 1730121641
  NPD
• Elk Regional Health Center

  dba Penn Highlands Elk

  • Long Term Care Pharmacy
  • Saint Marys, PA
  • NPI 1790570067
  NPD
• Seneca Pathology Associates LLC

  • Clinical Medical Laboratory
  • Clarion, PA
  • NPI 1356422265
  NPD
• Transitional Care Center at Clarion Hospital

  • Skilled Nursing Facility
  • Clarion, PA
  • NPI 1679563084
  NPD
• University of Pittsburgh Physicians

  dba UPP Department of Anesthesiology

  • Anesthesiology Physician
  • Pittsburgh, PA
  • NPI 1033125455
  NPD
• University of Pittsburgh Physicians

  • Diagnostic Radiology Physician
  • Pittsburgh, PA
  • NPI 1285692699
  NPD
• Upmc Kane

  • Medicare Defined Swing Bed Hospital Unit
  • Kane, PA
  • NPI 1467635375
  NPD
• Beaver Anesthesia Associates, Inc.

  • Anesthesiology Physician
  • Beaver, PA
  • NPI 1841201761
  NPD (past)

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

• Clarion Hospital

  • General Acute Care Hospital
  • Clarion, PA
  • NPI 1265422901
  Care Compare affiliation
• Clarion Hospital

  • Psychiatric Hospital Unit
  • Butler, PA
  • NPI 1861329153
  Care Compare affiliation

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

{
    "created_epoch": "1140566400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765238400000",
    "number": "1023083110",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "669 PINEY RD",
            "city": "CLARION",
            "state": "PA",
            "postal_code": "162143515",
            "telephone_number": "412-418-3088"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 HOSPITAL DR",
            "city": "CLARION",
            "state": "PA",
            "postal_code": "162148501",
            "telephone_number": "814-226-9500"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ROBERTSON",
        "first_name": "MARY",
        "middle_name": "ELLEN",
        "name_prefix": "Ms.",
        "credential": "CRNA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-02-22",
        "last_updated": "2025-12-09",
        "certification_date": "2025-12-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "PA",
            "license": "RN296245L",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "001726037",
            "state": "PA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARY",
            "last_name": "SICHAK",
            "middle_name": "ELLEN",
            "prefix": "MS.",
            "credential": "CRNA",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Lindsay Richardson
• Marwan Rifai, O.D.
• Melissa Kae Riley, D.C.
• Riverview Intermediate Unit 6
• Riverview Intermediate Unit 6
• Ronald P. Cramer,D.O.,P.C.
• Shirley Elaine Ruth, O.D.
• James Louis Rutkowski, DMD
• Laura Mae Sadowski
• Nicole M Salvo, BS

• Certified Registered Nurse Anesthetist in Clarion, PA
• Providers in Clarion, PA by specialty
• Certified Registered Nurse Anesthetist in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 9, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.

Verify at the official NPI Registry.