Herman A. Carstens, M.D.
Obstetrics & Gynecology Physician · Bloomington, CA
Herman A. Carstens, M.D. is an obstetrics & gynecology physician with a practice address in Bloomington, California, and NPI 1386611242, issued on Feb 28, 2006. Check the license (California A34747, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Herman A. Carstens
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- A34747 CA
Self-reported in NPPES; status is on the state search - Practice location
- 18601 Valley Blvd, Bloomington, CA 92316
- Phone
- (909) 546-7560
- Enumerated
- Feb 28, 2006
- Record last updated
- Oct 28, 2024
- Fax
- (909) 546-1091
- Medicaid ID
- 00A347471 CA
- Medicare enrollment
- Enrolled (PECOS I20150211001221); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 18601 Valley Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gisela BarajasFamily Nurse Practitioner1295443927
- Gurpreet Bir, DDSDentist1508022914
- Dimas Calvachi, FNP-CFamily Nurse Practitioner1386143881
- Jeffrey Davidson, DDSDentist1215983994
- Faiza Iram, MDPediatrics Physician1063773141
- Maneek KalerPediatrics Physician1538711791
Verify Herman A. Carstens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A34747Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Community Health Systems IncBloomington, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1 obstetrics & gynecology physician records list a practice address in Bloomington
They are 1 of the 237 NPPES records with a practice address in Bloomington, and 5,088 obstetrics & gynecology physician records in California.
Other obstetrics & gynecology physician records in California
- Ingrid Aalami, MDSan Jose, CA1952376550
- Avisa Abaian- Eagar, M.D.Orange, CA1316057755
- Derek Abbassi, MDWalnut Creek, CA1841364155
- Ahmed Abdelaziz, MDSanta Maria, CA1790039733
- Alireza Abdollah Shamshirsaz, M.D.Palo Alto, CA1881804235
- Nicole Abell, DOVentura, CA1811243603
- Zachary AbelsonLos Angeles, CA1689237414
- Ray Abinader, M.D.Loma Linda, CA1770901548
- Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
- Nada Abou-HaibaLos Angeles, CA1134067549
Common questions
What is Herman A. Carstens, M.D.'s NPI number?
Herman A. Carstens, M.D.'s National Provider Identifier (NPI) is 1386611242, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Herman A. Carstens, M.D. located?
The NPPES record lists a practice address at 18601 Valley Blvd, Bloomington, CA, 92316. Phone: (909) 546-7560. Providers update this record themselves, so call before visiting.
How can I verify Herman A. Carstens, M.D.'s license?
NPPES lists California license number A34747, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.