John Fritz, D.O.
NPI 1083700868 · Family Medicine Physician · Belvidere, NJ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Fritz, D.O. is a Family Medicine Physician provider in Belvidere, NJ (NPI 1083700868).
Provider details
- NPI number
- 1083700868
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- OS010216L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Metoprolol Tartrate | 36 |
| Amlodipine Besylate | 36 |
| Lactulose | 29 |
| Furosemide | 27 |
| Icosapent Ethylbrand: Vascepa | 26 |
| Apixabanbrand: Eliquis | 26 |
| Desmopressin Acetate | 25 |
| Potassium Chloride | 25 |
| Lisinopril | 22 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2018-02-12
Frequently asked questions
- What is John Fritz's NPI number?
- John Fritz's National Provider Identifier (NPI) is 1083700868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Fritz's specialty?
- John Fritz is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Fritz located?
- John Fritz's practice location on file with NPPES is 500 Greenwich St, Belvidere, NJ 07823-1409.
- What is John Fritz's phone number?
- The practice phone number listed in the NPPES registry for John Fritz is (908) 475-9990.
- Does John Fritz accept Medicare?
- John Fritz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Fritz's NPI active?
- Yes — John Fritz's NPI (1083700868) is active in the NPPES registry as of the last update on 2018-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.