Betty Keller, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

25MA05333400 Issued in NJ

Practice address

1122 Ramapo Valley Rd
Mahwah, NJ 07430-2410

Phone

(201) 693-7555

Fax

(201) 997-9924

NPI assigned

Sep 11, 2009

Last updated

Mar 28, 2026By the provider in NPPES

Sex

Female

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

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Opted out of Medicare

Previously, effective Aug 23, 2018 through Aug 23, 2026

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Optimal Wellness Center

  • Medical Specialty Clinic/Center
  • Franklin Lakes, NJ
  • NPI 1235424581
  NPD (past) Authorized official
• North Jersey Center for Arthritis & Osteoporosis

  • Specialist
  • Butler, NJ
  • NPI 1609995638

  Single Specialty

  NPD (past)
• Florida Arthritis & Rheumatology Associates, LLC

  • Rheumatology Physician
  • Loxahatchee, FL
  • NPI 1396159067

  Single Specialty

  NPD (past)

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

{
    "created_epoch": "1252627200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774656000000",
    "number": "1972836781",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1122 RAMAPO VALLEY RD",
            "city": "MAHWAH",
            "state": "NJ",
            "postal_code": "074302410",
            "telephone_number": "201-661-3702",
            "fax_number": "201-977-9924"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1122 RAMAPO VALLEY RD",
            "city": "MAHWAH",
            "state": "NJ",
            "postal_code": "074302410",
            "telephone_number": "201-693-7555",
            "fax_number": "201-997-9924"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KELLER",
        "first_name": "BETTY",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2009-09-11",
        "last_updated": "2026-03-28",
        "certification_date": "2026-03-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NJ",
            "license": "25MA05333400",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A44558",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Je Eun Jung, L.AC.
• Colleen R. Kachele, DC
• Gerard John Kanczewski, RPH
• Sydney Kaplan
• Purva Kashyap
• Caitlin Kelly
• Kate Elizabeth Kezmarsky
• Komal Khera
• John Sungho Kim
• Christine E Kline, LSW

• Internal Medicine Physician in Mahwah, NJ
• Providers in Mahwah, NJ by specialty
• Internal Medicine Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 28, 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.