Zachary Mason Merriam, D.O.
Obstetrics & Gynecology Physician · Englewood, NJ
Zachary Mason Merriam, D.O. is an obstetrics & gynecology physician with a practice address in Englewood, New Jersey, and NPI 1740476563, issued on Sep 16, 2007. Check the license (New Jersey 25MB09689400, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Zachary Mason Merriam
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 25MB09689400 NJ
050100 CT
263823 NY
Self-reported in NPPES; status is on the state search - Practice location
- 401 S Van Brunt St Ste 301, Englewood, NJ 07631
- Phone
- (201) 659-7700
- Enumerated
- Sep 16, 2007
- Record last updated
- May 30, 2024
- Medicaid ID
- 0980536 NJ
- Medicare enrollment
- Enrolled (PECOS I20160913002502); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2007
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,362 in New Jersey → Look up another NPI →
Verify Zachary Mason Merriam 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 25MB09689400Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
44 Medicare Part D claims for 23 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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
- Medical Associates OF Englewood PCEnglewood, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachary Mason Merriam among 1,362 obstetrics & gynecology physician records in New Jersey
Zachary Mason Merriam, D.O. is one of 1,362 obstetrics & gynecology physician records with a practice address in New Jersey. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 51% of them.
- NPI issued2007 · 51% of these records are older, 41% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2007 · median 2003 among the 900 with a school on file
- Record last updated2024 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 obstetrics & gynecology physician records list a practice address in Englewood
They are 35 of the 1,428 NPPES records with a practice address in Englewood, and 1,362 obstetrics & gynecology physician records in New Jersey.
All 1,362 in New Jersey → Every provider in Englewood → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Constantine Binas, M.D.Englewood, NJ 076311427066257
- Victor Borden, MDEnglewood, NJ 076311043274384
- Harvey Friedman, MDEnglewood, NJ 076311982663191
- Marina Jacobson, M.D.Englewood, NJ 076311831145473
- Stephen Jaffe, MDEnglewood, NJ 076311730148339
- Jay Kelinson, M.D.Englewood, NJ 076311972567576
- Karen Patrusky, MDEnglewood, NJ 076311053370262
- Henry Saphier, M.D.Englewood, NJ 076311427001908
Common questions
What is Zachary Mason Merriam, D.O.'s NPI number?
Zachary Mason Merriam, D.O.'s National Provider Identifier (NPI) is 1740476563, issued on Sep 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Mason Merriam, D.O. located?
The NPPES record lists a practice address at 401 S Van Brunt St Ste 301, Englewood, NJ, 07631. Phone: (201) 659-7700. Providers update this record themselves, so call before visiting.
How can I verify Zachary Mason Merriam, D.O.'s license?
NPPES lists New Jersey license number 25MB09689400, 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 Zachary Mason Merriam, D.O. prescribe under Medicare Part D?
In 2024, Zachary Mason Merriam, D.O. had 44 Medicare Part D claims for 23 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.