Maria Gabriella Gerew, MD, MPH
Internal Medicine Physician · Morristown, NJ
Maria Gabriella Gerew, MD, MPH is an internal medicine physician with a practice address in Morristown, New Jersey, and NPI 1629606157, issued on Mar 30, 2020. Check the license (New Jersey 25MA11915600, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Maria Gabriella Gerew
- Credential
- MD, MPH
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA11915600 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 435 South St Ste 350, Morristown, NJ 07960
- Phone
- (973) 971-6700
- Enumerated
- Mar 30, 2020
- Record last updated
- Dec 1, 2023
- Fax
- (973) 290-7480
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 435 South St Ste 350
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Meghan Mihalik, MDHospitalist Physician1265015101
Verify Maria Gabriella Gerew 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 25MA11915600Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
133 Medicare Part D claims for 47 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Amlodipine Besylate12 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.
Industry payments in 2024: $88.08
5 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Maria Gabriella Gerew among 4,632 internal medicine physician records in New Jersey
Maria Gabriella Gerew, MD, MPH 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 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2023 · 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).
94 internal medicine physician records list a practice address in Morristown
They are 94 of the 2,942 NPPES records with a practice address in Morristown, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Morristown → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nalini Asokan, MDMorristown, NJ 079601235100389
- Sophia Naa-Abia Casely-Hayford, M.D.Morristown, NJ 079601528051331
- Joselyn Gonzalez, MDMorristown, NJ 079601063491629
- John Griffin, M.D.Morristown, NJ 079601770571986
- Rebecca Griffith, MDMorristown, NJ 079601215909320
- Evangeline Gutierrez, MDMorristown, NJ 079601356339741
- Louise Karger, MDMorristown, NJ 079601245202522
- Brenda Matti-Orozco, M.D.Morristown, NJ 079601366435216
Common questions
What is Maria Gabriella Gerew, MD, MPH's NPI number?
Maria Gabriella Gerew, MD, MPH's National Provider Identifier (NPI) is 1629606157, issued on Mar 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Maria Gabriella Gerew, MD, MPH located?
The NPPES record lists a practice address at 435 South St Ste 350, Morristown, NJ, 07960. Phone: (973) 971-6700. Providers update this record themselves, so call before visiting.
How can I verify Maria Gabriella Gerew, MD, MPH's license?
NPPES lists New Jersey license number 25MA11915600, 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 Maria Gabriella Gerew, MD, MPH prescribe under Medicare Part D?
In 2024, Maria Gabriella Gerew, MD, MPH had 133 Medicare Part D claims for 47 beneficiaries; 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.