Marianna B. Shimelfarb, M.D.
Family Medicine Physician · Montclair, NJ
Marianna B. Shimelfarb, M.D. is a family medicine physician with a practice address in Montclair, New Jersey, and NPI 1275842452, issued on Oct 5, 2010. Check the license (New Jersey 25MA09722100, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Marianna B. Shimelfarb
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 25MA09722100 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 48-50 Fairfield Street, Montclair, NJ 07042
- Phone
- (973) 744-8511
- Enumerated
- Oct 5, 2010
- Record last updated
- Jul 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (973) 744-6356
- Medicare enrollment
- Enrolled (PECOS I20160922001153); accepts Medicare assignment
- Medical or professional school
- University Of New Mexico School Of Medicine, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,770 in New Jersey → Look up another NPI →
Verify Marianna B. Shimelfarb 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 25MA09722100Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average family medicine physician in 2024
1,094 Medicare Part D claims for 155 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate94 claims
- Atorvastatin Calcium93 claims
- Levothyroxine Sodium92 claims
- Losartan Potassium68 claims
- Rosuvastatin Calcium64 claims
- Hydrochlorothiazide45 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.
Bills Medicare through one group practice
- Summit Medical Group PABerkeley Heights, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marianna B. Shimelfarb among 2,770 family medicine physician records in New Jersey
Marianna B. Shimelfarb, M.D. is one of 2,770 family 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 2010, is newer than 61% of them.
- NPI issued2010 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2007 · median 2006 among the 1,875 with a school on file
- Record last updated2019 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
15 family medicine physician records list a practice address in Montclair
They are 15 of the 1,402 NPPES records with a practice address in Montclair, and 2,770 family medicine physician records in New Jersey.
All 2,770 in New Jersey → Every provider in Montclair → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Elaine Douglas, MDMontclair, NJ 070421841371853
- Reintine HanMontclair, NJ 070421740784636
- Gregory Heifler, MDMontclair, NJ 070421902998685
- Caecilia Hostetler, MDMontclair, NJ 070421578621413
- Geetha Hrishikesan, MDMontclair, NJ 070421326117599
- Malasa Kahn, DOMontclair, NJ 070421184037079
- Jason Kahn, DOMontclair, NJ 070421538572425
- Afshan Khan, D.O.Montclair, NJ 070421578802591
Common questions
What is Marianna B. Shimelfarb, M.D.'s NPI number?
Marianna B. Shimelfarb, M.D.'s National Provider Identifier (NPI) is 1275842452, issued on Oct 5, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Marianna B. Shimelfarb, M.D. located?
The NPPES record lists a practice address at 48-50 Fairfield Street, Montclair, NJ, 07042. Phone: (973) 744-8511. Providers update this record themselves, so call before visiting.
How can I verify Marianna B. Shimelfarb, M.D.'s license?
NPPES lists New Jersey license number 25MA09722100, 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 Marianna B. Shimelfarb, M.D. prescribe under Medicare Part D?
In 2024, Marianna B. Shimelfarb, M.D. had 1,094 Medicare Part D claims for 155 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.