Betty Keller, MD
Internal Medicine Physician · Mahwah, NJ
Betty Keller, MD is an internal medicine physician with a practice address in Mahwah, New Jersey, and NPI 1972836781, issued on Sep 11, 2009. Check the license (New Jersey 25MA05333400, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Betty Keller
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 25MA05333400 NJ
A44558 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1122 Ramapo Valley RD, Mahwah, NJ 07430
- Phone
- (201) 693-7555
- Enumerated
- Sep 11, 2009
- Record last updated
- Mar 28, 2026
- Fax
- (201) 997-9924
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Verify Betty Keller in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA05333400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
18 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 89% of claims.
Most prescribed
- Ozempic16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Betty Keller among 4,632 internal medicine physician records in New Jersey
Betty Keller, MD is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 64% of them.
- NPI issued2009 · 64% of these records are older, 34% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 internal medicine physician records list a practice address in Mahwah
They are 3 of the 235 NPPES records with a practice address in Mahwah, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Mahwah → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Glenn Leslie, D.O.Mahwah, NJ 074301285712950
- Morteza Shahamat, MDMahwah, NJ 074301154429959
- Ladan Bahrampour, MDMidland Park, NJ 074321003877622
- Sally Cohen, M.D.Midland Park, NJ 074321093968950
- Dina Dabaj, M.DMidland Park, NJ 074321952551509
- Howard Frauwirth, M.D.Midland Park, NJ 074321992789697
- Karola Prinz, M.D.Midland Park, NJ 074321437115193
- Rengaswamy Asokan, MDNewfoundland, NJ 074351639196256
Common questions
What is Betty Keller, MD's NPI number?
Betty Keller, MD's National Provider Identifier (NPI) is 1972836781, issued on Sep 11, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Betty Keller, MD located?
The NPPES record lists a practice address at 1122 Ramapo Valley RD, Mahwah, NJ, 07430. Phone: (201) 693-7555. Providers update this record themselves, so call before visiting.
How can I verify Betty Keller, MD's license?
NPPES lists New Jersey license number 25MA05333400, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Betty Keller, MD prescribe under Medicare Part D?
In 2024, Betty Keller, MD had 18 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.