Ruth Zisle Feldman, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

C0008265 Issued in MD

Practice address

5500 Knoll North Dr Ste 290
Columbia, MD 21045-2389

Phone

(718) 564-3537

NPI assigned

Oct 18, 2020

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MD

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Joshi and Merchant, MD,PAGroup PAC ID 4981641206, 9 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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 and National Provider Directory roles.

• Joshi & Merchant, MD,PA

  • Psychiatry Physician
  • Columbia, MD
  • NPI 1609811447
  Medicare reassignment Care Compare group
• Joshi & Merchant, MD,PA

  • Internal Medicine Physician
  • Columbia, MD
  • NPI 1689542656
  NPD
• Joshi Mental Health and Wellness LLC

  • Psychiatric/Mental Health Nurse Practitioner
  • Columbia, MD
  • NPI 1669391108
  NPD

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

{
    "created_epoch": "1602979200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752364800000",
    "number": "1255930624",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8890 MCGAW RD STE 350-360",
            "city": "COLUMBIA",
            "state": "MD",
            "postal_code": "210454743"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5500 KNOLL NORTH DR STE 290",
            "city": "COLUMBIA",
            "state": "MD",
            "postal_code": "210452389",
            "telephone_number": "718-564-3537"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FELDMAN",
        "first_name": "RUTH",
        "middle_name": "ZISLE",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2020-10-18",
        "last_updated": "2025-07-13",
        "certification_date": "2025-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MD",
            "license": "C0008265",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Richard Fein, D.M.D.
• Caroline Marie Feinroth
• Beth Anne Newman Feldman, PHD
• Gail Feldman
• Rachel Feldman
• Samuel J Feldman
• Jamie Harrell Feldt, CRNA
• Felice Physical Therapy
• Naisha Feliciano Brown
• Megan Fellner

• Physician Assistant in Columbia, MD
• Providers in Columbia, MD by specialty
• Physician Assistant in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.

Verify at the official NPI Registry.