Jooyoung Montoya, MD
Specialist · Fountain Valley, CA
Jooyoung Montoya, MD is a specialist with a practice address in Fountain Valley, California, and NPI 1922063825, issued on Apr 20, 2006. Check the license (California G79721, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jooyoung Montoya
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- G79721 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9940 Talbert Ave, Fountain Valley, CA 92708
- Phone
- (714) 378-5606
- Enumerated
- Apr 20, 2006
- Record last updated
- Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (714) 378-5621
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 9940 Talbert Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jooyoung Montoya in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license G79721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average specialist in 2024
116 Medicare Part D claims for 41 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Estradiol45 claims
- Yuvafem23 claims
- Estring11 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.
Jooyoung Montoya among 5,749 specialist records in California
Jooyoung Montoya, MD is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2021 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 specialist records list a practice address in Fountain Valley
They are 34 of the 2,190 NPPES records with a practice address in Fountain Valley, and 5,749 specialist records in California.
All 5,749 in California → Every provider in Fountain Valley → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Mir Ali, MDFountain Valley, CA 927081184689663
- Viet Be, M.D.Fountain Valley, CA 927081437118650
- Philip Chin, M.D.Fountain Valley, CA 927081548224629
- Himmet Dajee, MDFountain Valley, CA 927081124082730
- Kelly Francis, M.D.Fountain Valley, CA 927081497719504
- Haresh Jhangiani, M.D.Fountain Valley, CA 927081578566998
- Jane Kakkis, M.D.Fountain Valley, CA 927081598715427
- Peter Leport, M.D.Fountain Valley, CA 927081932163532
Common questions
What is Jooyoung Montoya, MD's NPI number?
Jooyoung Montoya, MD's National Provider Identifier (NPI) is 1922063825, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jooyoung Montoya, MD located?
The NPPES record lists a practice address at 9940 Talbert Ave, Fountain Valley, CA, 92708. Phone: (714) 378-5606. Providers update this record themselves, so call before visiting.
How can I verify Jooyoung Montoya, MD's license?
NPPES lists California license number G79721, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jooyoung Montoya, MD prescribe under Medicare Part D?
In 2024, Jooyoung Montoya, MD had 116 Medicare Part D claims for 41 beneficiaries; the average among specialist prescribers was 1,380. 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.