Carole Ann Casteen, M.D.
Ophthalmology Physician · Bakersfield, CA
Carole Ann Casteen, M.D. is an ophthalmology physician with a practice address in Bakersfield, California, and NPI 1407891393, issued on Jun 17, 2006. Check the license (California G50991, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Carole Ann Casteen
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G50991 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1026 Calloway Dr, Bakersfield, CA 93312
- Phone
- (661) 663-9090
- Enumerated
- Jun 17, 2006
- Record last updated
- Oct 27, 2023
- Fax
- (661) 869-2003
- Medicaid ID
- 00G509910 CA
- Medicare enrollment
- Enrolled (PECOS I20051219001054); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 1982
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 1026 Calloway Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bryan GamezPhysical Therapy Assistant1730031295
Verify Carole Ann Casteen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50991Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average ophthalmology physician in 2024
647 Medicare Part D claims for 218 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Latanoprost239 claims
- Cyclosporine105 claims
- Metronidazole67 claims
- Erythromycin45 claims
- Ofloxacin30 claims
- Brimonidine Tartrate28 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupBakersfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carole Ann Casteen among 2,899 ophthalmology physician records in California
Carole Ann Casteen, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1982 · median 2001 among the 1,907 with a school on file
- Record last updated2023 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Bakersfield → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Charles Fritch, M.D.Bakersfield, CA 933121982639159
- Steven Yaplee, M.D.Bakersfield, CA 933121760678643
- Ali Banihashemi, M.D.Bakersfield, CA 933091891803326
- Paul Bonds, M.D.Bakersfield, CA 933091346320645
- Daniel Chang, MDBakersfield, CA 933091184618266
- Ekjyot Gill, MDBakersfield, CA 933091912433202
- Andrew Kao, MDBakersfield, CA 933091154685360
- Hosein Mohammadi, M.D.Bakersfield, CA 933091750499299
Common questions
What is Carole Ann Casteen, M.D.'s NPI number?
Carole Ann Casteen, M.D.'s National Provider Identifier (NPI) is 1407891393, issued on Jun 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carole Ann Casteen, M.D. located?
The NPPES record lists a practice address at 1026 Calloway Dr, Bakersfield, CA, 93312. Phone: (661) 663-9090. Providers update this record themselves, so call before visiting.
How can I verify Carole Ann Casteen, M.D.'s license?
NPPES lists California license number G50991, 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.
How much does Carole Ann Casteen, M.D. prescribe under Medicare Part D?
In 2024, Carole Ann Casteen, M.D. had 647 Medicare Part D claims for 218 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
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.