Harold N. Rosengren, M.D., a Medical Corporation
NPI 1639497639 · Allergy Physician · Oxnard, CA
Harold N. Rosengren, M.D., a Medical Corporation is a Allergy Physician organization in Oxnard, CA (NPI 1639497639).
Provider details
- NPI number
- 1639497639
- Entity type
- Organization
- Primary specialty
- Allergy PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Harold Rosengren, Owner(805) 983-0880
- License
- G15538 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2010-05-14
- Last updated
- 2010-05-14
Frequently asked questions
- What is Harold N. Rosengren, M.D., a Medical Corporation's NPI number?
- Harold N. Rosengren, M.D., a Medical Corporation's National Provider Identifier (NPI) is 1639497639, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Harold N. Rosengren, M.D., a Medical Corporation?
- Harold N. Rosengren, M.D., a Medical Corporation is classified in the NPPES registry as Allergy Physician (Allopathic & Osteopathic Physicians).
- Where is Harold N. Rosengren, M.D., a Medical Corporation located?
- Harold N. Rosengren, M.D., a Medical Corporation's practice location on file with NPPES is 1100 W Gonzales Rd, Oxnard, CA 93036-3336.
- What is Harold N. Rosengren, M.D., a Medical Corporation's phone number?
- The practice phone number listed in the NPPES registry for Harold N. Rosengren, M.D., a Medical Corporation is (805) 983-0880.
- Who is the authorized official for Harold N. Rosengren, M.D., a Medical Corporation?
- The authorized official listed on Harold N. Rosengren, M.D., a Medical Corporation's NPPES record is Harold Rosengren, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Harold N. Rosengren, M.D., a Medical Corporation's NPI active?
- Yes — Harold N. Rosengren, M.D., a Medical Corporation's NPI (1639497639) is active in the NPPES registry as of the last update on 2010-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.