Richard H. Yook, M.D.
Ophthalmology Physician · Northridge, CA
Richard H. Yook, M.D. is an ophthalmology physician with a practice address in Northridge, California, and NPI 1003838392, issued on Jul 24, 2006. Check the license (California G24712, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard H. Yook
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G24712 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8940 Reseda Blvd, Northridge, CA 91324
- Phone
- (818) 993-5410
- Enumerated
- Jul 24, 2006
- Record last updated
- Apr 14, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (818) 993-8300
- Medicaid IDs
- G24712 CA
00G247120 CA - Medicare enrollment
- Enrolled (PECOS I20071106000850); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1972
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 8940 Reseda Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Liu, DDS, MSOrthodontics and Dentofacial Orthopedics Dentistry1649460627
- Tim Yee, O.D.Optometrist1982626800
Verify Richard H. Yook in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G24712Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average ophthalmology physician in 2024
67 Medicare Part D claims for 16 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 66% of claims.
Most prescribed
- Latanoprost26 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 75.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Richard H. Yook, M.D, Inc.Northridge, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard H. Yook among 2,899 ophthalmology physician records in California
Richard H. Yook, 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
- Graduated1972 · median 2001 among the 1,907 with a school on file
- Record last updated2008 · 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 Northridge → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- W Scott Calvin, M.D.Northridge, CA 913241649212895
- Andrew Chang, M.D.Northridge, CA 913251003808494
- Joseph Kerendian, MDNorthridge, CA 913251386643815
- Ronald Malkin, M.D.Northridge, CA 913251134568272
- Mitchell Shultz, M.D.Northridge, CA 913251427153022
- Franz Michel, M.D.Newbury Park, CA 913201124176417
- Bruce Becker, M.D.Encino, CA 913161376584433
- Justin Dredge, MDEncino, CA 913161780069294
Common questions
What is Richard H. Yook, M.D.'s NPI number?
Richard H. Yook, M.D.'s National Provider Identifier (NPI) is 1003838392, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard H. Yook, M.D. located?
The NPPES record lists a practice address at 8940 Reseda Blvd, Northridge, CA, 91324. Phone: (818) 993-5410. Providers update this record themselves, so call before visiting.
How can I verify Richard H. Yook, M.D.'s license?
NPPES lists California license number G24712, 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 Richard H. Yook, M.D. prescribe under Medicare Part D?
In 2024, Richard H. Yook, M.D. had 67 Medicare Part D claims for 16 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Richard H. Yook, M.D.'s MIPS final score?
The 2023 MIPS final score is 75.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.