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William Oser, M.D.
NPI 1548481690 · Internal Medicine Physician · Edison, NJ
William Oser, M.D. is a Internal Medicine Physician provider in Edison, NJ (NPI 1548481690).
Provider details
- NPI number
- 1548481690
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25MA05065400 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(89/100 index)
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.
Practice location
65 James Street
Edison, NJ 08818
Phone: (732) 321-7502
Street-level locationGet directions
Mailing address
5 Morningside Road
Verona, NJ 07044
Registry dates
- Enumerated
- 2007-05-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Oser's NPI number?
- William Oser's National Provider Identifier (NPI) is 1548481690, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Oser's specialty?
- William Oser is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Oser located?
- William Oser's practice location on file with NPPES is 65 James Street, Edison, NJ 08818.
- What is William Oser's phone number?
- The practice phone number listed in the NPPES registry for William Oser is (732) 321-7502.
- Is William Oser's NPI active?
- Yes — William Oser's NPI (1548481690) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.