Marian Iwamoto, MD, PHD
NPI 1215101910 · Internal Medicine Physician · Rahway, NJ
Marian Iwamoto, MD, PHD is a Internal Medicine Physician provider in Rahway, NJ (NPI 1215101910).
Provider details
- NPI number
- 1215101910
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 25MA07432200 (NJ)
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
18 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
Mailing address
Registry dates
- Enumerated
- 2008-04-15
- Last updated
- 2008-04-15
Frequently asked questions
- What is Marian Iwamoto's NPI number?
- Marian Iwamoto's National Provider Identifier (NPI) is 1215101910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marian Iwamoto's specialty?
- Marian Iwamoto is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marian Iwamoto located?
- Marian Iwamoto's practice location on file with NPPES is 126 E Lincoln Ave, Rahway, NJ 07065-0900.
- What is Marian Iwamoto's phone number?
- The practice phone number listed in the NPPES registry for Marian Iwamoto is (732) 594-4947.
- Is Marian Iwamoto's NPI active?
- Yes — Marian Iwamoto's NPI (1215101910) is active in the NPPES registry as of the last update on 2008-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.