Jeffrey Merkle, MD
Internal Medicine Physician · Hackettstown, NJ
Jeffrey Merkle, MD is an internal medicine physician with a practice address in Hackettstown, New Jersey, and NPI 1295721165, issued on Sep 26, 2005. Check the license (New Jersey 25MA07799200, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Merkle
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA07799200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 254B Mountain Ave, Hackettstown, NJ 07840
- Phone
- (908) 852-6400
- Enumerated
- Sep 26, 2005
- Record last updated
- Feb 12, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (908) 852-6450
- Medicaid ID
- 0065129 NJ
- Medicare enrollment
- Enrolled (PECOS I20050316000907); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 254B Mountain Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Castro, D.O.Physical Medicine & Rehabilitation Physician1356422406
- Joanne Cuomo, LCSWClinical Social Worker1770701815
- Olga DebrinMedical Physician Assistant1437692308
- Donna Etkins, LCSWClinical Social Worker1316087869
Verify Jeffrey Merkle 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 25MA07799200Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 63% of the cost of the top drugs
2,371 Medicare Part D claims for 307 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 48 claims were for opioids.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Atorvastatin Calcium130 claims
- Levothyroxine Sodium108 claims
- Metformin Hcl105 claims
- Amlodipine Besylate103 claims
- Losartan Potassium75 claims
- Lisinopril72 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: $746.24
36 payments; by number, the most common kind was food and beverage; the largest payer was Baxter Healthcare. 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.
Bills Medicare through one group practice
- Primary Care Partners LLCHackettstown, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeffrey Merkle among 4,632 internal medicine physician records in New Jersey
Jeffrey Merkle, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2000 · median 2000 among the 3,132 with a school on file
- Record last updated2018 · 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).
26 internal medicine physician records list a practice address in Hackettstown
They are 26 of the 575 NPPES records with a practice address in Hackettstown, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Hackettstown → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Antonella Auciello, M.D.Hackettstown, NJ 078401629064043
- Jimmy Chang, M.D.Hackettstown, NJ 078401629082300
- Devi Gollapudi, M.D.Hackettstown, NJ 078401841248036
- Keri Ingrassia-Squiers, DOHackettstown, NJ 078401467465203
- Kenneth Janowski, DOHackettstown, NJ 078401629017017
- Uldis Jansons, MDHackettstown, NJ 078401255312054
- Sanjay Kavathia, M.D.Hackettstown, NJ 078401124078142
- Ahmad Maatouk, M.D.Hackettstown, NJ 078401790938066
Common questions
What is Jeffrey Merkle, MD's NPI number?
Jeffrey Merkle, MD's National Provider Identifier (NPI) is 1295721165, issued on Sep 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Merkle, MD located?
The NPPES record lists a practice address at 254B Mountain Ave, Hackettstown, NJ, 07840. Phone: (908) 852-6400. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Merkle, MD's license?
NPPES lists New Jersey license number 25MA07799200, 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 Jeffrey Merkle, MD prescribe under Medicare Part D?
In 2024, Jeffrey Merkle, MD had 2,371 Medicare Part D claims for 307 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.