Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Betty Keller, MD

Individual provider Internal Medicine Physician · NPI 1972836781

Betty Keller, MD is an Internal Medicine Physician in Mahwah, New Jersey. Practices as a sole proprietor. Licensed in California and New Jersey.

Licensed in
CA, NJ
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1122 Ramapo Valley Rd
Mahwah, NJ 07430-2410
Phone: (201) 693-7555
Fax: (201) 997-9924
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 25MA05333400 (NJ)
Internal Medicine Physician Taxonomy 207R00000X · Licence A44558 (CA)

Record details

NPI number1972836781
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 11, 2009
Last updated in NPPESMarch 28, 2026
Certification dateMarch 28, 2026
Mailing address1122 Ramapo Valley Rd, Mahwah, NJ 07430-2410

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