Masumi George Asahi, DO
Ophthalmology Physician · Orange, CA
Masumi George Asahi, DO is an ophthalmology physician with a practice address in Orange, California, and NPI 1962963769, issued on Mar 26, 2019. Check the license (California 20A20765, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Masumi George Asahi
- Credential
- DO
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 20A20765 CA
Self-reported in NPPES; status is on the state search - Practice location
- 101 The City Dr S Ste 400, Orange, CA 92868
- Phone
- (714) 456-5691
- Enumerated
- Mar 26, 2019
- Record last updated
- Oct 9, 2023
- Fax
- (714) 456-8874
- Medicare enrollment
- Enrolled (PECOS I20230520000111); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 101 The City Dr S Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joshua AbataStudent in an Organized Health Care Education/Training Program1437899697
- Mark Abdelnour, MDStudent in an Organized Health Care Education/Training Program1194527812
- Shant AbrhamianStudent in an Organized Health Care Education/Training Program1033911219
- Salam AllahwerdyStudent in an Organized Health Care Education/Training Program1124767470
- Lily Allison, MDStudent in an Organized Health Care Education/Training Program1063272441
- Charissa Alo, MDStudent in an Organized Health Care Education/Training Program1801699335
Verify Masumi George Asahi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A20765Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average ophthalmology physician in 2024
374 Medicare Part D claims for 123 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Prednisolone Acetate55 claims
- Dorzolamide-Timolol46 claims
- Latanoprost40 claims
- Ketorolac Tromethamine39 claims
- Brimonidine Tartrate25 claims
- Prolensa19 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.
Industry payments in 2024: $1,336.96
19 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Retina Macula InstituteTorrance, CA
- Serve The People, Inc.Santa Ana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Masumi George Asahi among 2,899 ophthalmology physician records in California
Masumi George Asahi, DO 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 2019, is newer than 92% of them.
- NPI issued2019 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2019 · 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 Orange → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Rahul Bhola, M.D.Orange, CA 928681609910033
- Swaraj Bose, MDOrange, CA 928681285714360
- Michael V Drake, MDOrange, CA 928681356421499
- Babak Fardin, MDOrange, CA 928681174553424
- George Garcia, M.D.Orange, CA 928681437175262
- Laura Howard, M.D.Orange, CA 928681194934109
- Linda Lippa, MDOrange, CA 928681245310499
- Christopher Lyon, PH.D,MDOrange, CA 928681649316753
Common questions
What is Masumi George Asahi, DO's NPI number?
Masumi George Asahi, DO's National Provider Identifier (NPI) is 1962963769, issued on Mar 26, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Masumi George Asahi, DO located?
The NPPES record lists a practice address at 101 The City Dr S Ste 400, Orange, CA, 92868. Phone: (714) 456-5691. Providers update this record themselves, so call before visiting.
How can I verify Masumi George Asahi, DO's license?
NPPES lists California license number 20A20765, 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 Masumi George Asahi, DO prescribe under Medicare Part D?
In 2024, Masumi George Asahi, DO had 374 Medicare Part D claims for 123 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.