Frederick R. Tiencken, RPA-C

Primary specialty

Medical Physician AssistantTaxonomy code 363AM0700X

License

25MP00264400 Issued in NJ

Practice address

1200 E Ridgewood Ave Ste 200
Ridgewood, NJ 07450-3937

Phone

(201) 327-8600

Fax

(201) 327-8225

NPI assigned

Sep 21, 2010

Last updated

Aug 21, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in NJ

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, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Neurosurgical Associates of New Jersey, P.C.Group PAC ID 2961405055, 42 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Cooperman Barnabas Medical Center Hospital, Livingston, NJ, CCN 310076
• Overlook Medical Center Hospital, Summit, NJ, CCN 310051

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Interoperability endpoints

• Direct secure messaging: ftiencken249424@epicdirect.rwjbh.org
• Direct secure messaging: ftiencken258268@ahs.direct-ci.com

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.

• Neurosurgical Associates of New Jersey, P.C.

  • Neurological Surgery Physician
  • Ridgewood, NJ
  • NPI 1992753594
  Medicare reassignment Care Compare group

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

• Ahs Hospital Corp.

  dba Overlook Hospital

  • General Acute Care Hospital
  • Summit, NJ
  • NPI 1740254143
  Care Compare affiliation
• Cooperman Barnabas Medical Center Inc

  • General Acute Care Hospital
  • Livingston, NJ
  • NPI 1396857488
  Care Compare affiliation

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

{
    "created_epoch": "1285027200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755734400000",
    "number": "1396053617",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1200 E RIDGEWOOD AVE STE 200",
            "city": "RIDGEWOOD",
            "state": "NJ",
            "postal_code": "074503937",
            "telephone_number": "201-327-8600",
            "fax_number": "201-327-8225"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1200 E RIDGEWOOD AVE STE 200",
            "city": "RIDGEWOOD",
            "state": "NJ",
            "postal_code": "074503937",
            "telephone_number": "201-327-8600",
            "fax_number": "201-327-8225"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TIENCKEN",
        "first_name": "FREDERICK",
        "middle_name": "R.",
        "name_prefix": "Mr.",
        "credential": "RPA-C",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-09-21",
        "last_updated": "2025-08-21",
        "certification_date": "2025-08-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "NY",
            "license": "014271",
            "primary": false
        },
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "NJ",
            "license": "25MP00264400",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• The Wagner Center for Psychotherapy
• Therapy Beyond Instinct
• Neil Alan Thoman, DMD
• Joly John Thomas
• Thrive Psychotherapy
• George Patrick Tierney, PHD
• Siegfried Willem Tjonajong, DMD MSD
• TLC Companions Home Health Care, LLC
• Donald Tomaszewski, ATC/L
• Robert Tomlinson, MDIV, MA, LP

• Medical Physician Assistant in Ridgewood, NJ
• Providers in Ridgewood, NJ by specialty
• Medical Physician Assistant in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 21, 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.