Herman Carstens, M.D.
NPI 1386611242 · Obstetrics & Gynecology Physician · Bloomington, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Herman Carstens, M.D. is a Obstetrics & Gynecology Physician provider in Bloomington, CA (NPI 1386611242).
Provider details
- NPI number
- 1386611242
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A34747 (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
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 231 E Alessandro Blvd # A684Riverside, CA 92508-5084Phone: (951) 743-5439
Registry dates
- Enumerated
- 2006-02-28
- Last updated
- 2024-10-28
- Certified
- 2024-10-28
Frequently asked questions
- What is Herman Carstens's NPI number?
- Herman Carstens's National Provider Identifier (NPI) is 1386611242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Herman Carstens's specialty?
- Herman Carstens is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Herman Carstens located?
- Herman Carstens's practice location on file with NPPES is 18601 Valley Blvd, Bloomington, CA 92316-1831.
- What is Herman Carstens's phone number?
- The practice phone number listed in the NPPES registry for Herman Carstens is (909) 546-7560.
- Does Herman Carstens accept Medicare?
- Herman Carstens is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Herman Carstens's NPI active?
- Yes — Herman Carstens's NPI (1386611242) is active in the NPPES registry as of the last update on 2024-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.