Ramin Monshizadeh, M.D.
Retina Specialist (Ophthalmology) Physician · Rancho Cucamonga, CA
Ramin Monshizadeh, M.D. is a retina specialist (ophthalmology) physician with a practice address in Rancho Cucamonga, California, and NPI 1578566030, issued on May 27, 2005. Check the license (California G86057, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ramin Monshizadeh
- Credential
- M.D.
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- G86057 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8577 Haven Ave, Rancho Cucamonga, CA 91730
- Phone
- (909) 944-5353
- Enumerated
- May 27, 2005
- Record last updated
- Aug 14, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (909) 944-4975
- Medicare enrollment
- Enrolled (PECOS I20050328001099); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 205 in California → Look up another NPI →
Also registered at 8577 Haven Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danny Poore, D.D.S.General Practice Dentistry1710077813
- Donald Schaefer, D.C.Chiropractor1245406461
Verify Ramin Monshizadeh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G86057Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% more Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
703 Medicare Part D claims for 157 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.
Most prescribed
- Latanoprost203 claims
- Dorzolamide-Timolol120 claims
- Timolol Maleate99 claims
- Prednisolone Acetate65 claims
- Brimonidine Tartrate45 claims
- Ciprofloxacin Hcl27 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 MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Medical Consultants OF Southern California, IncRancho Cucamonga, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ramin Monshizadeh among 205 retina specialist (ophthalmology) physician records in California
Ramin Monshizadeh, M.D. is one of 205 retina specialist (ophthalmology) physician records with a practice address in California. 98% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 98% of these records are
- In the CMS Doctors and Clinicians fileYes · 92% of these records are
- Graduated1993 · median 2007 among the 189 with a school on file
- Record last updated2017 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in California
There are 205 retina specialist (ophthalmology) physician records in California.
All 205 in California → Every provider in Rancho Cucamonga → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Michael Davis, MDPomona, CA 917671437320785
- Yi Jiang, MDSan Gabriel, CA 917761114210176
- Martha Henao, MDUpland, CA 917861316358971
- Samuel Kim, MDUpland, CA 917861720379100
- Caleb NgUpland, CA 917861568842672
- Tayson Delengocky, D.OChula Vista, CA 919111164637153
- Kyle Green, MDChula Vista, CA 919111013479427
- Majid Mani, M.D.Chula Vista, CA 919111043261373
Common questions
What is Ramin Monshizadeh, M.D.'s NPI number?
Ramin Monshizadeh, M.D.'s National Provider Identifier (NPI) is 1578566030, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ramin Monshizadeh, M.D. located?
The NPPES record lists a practice address at 8577 Haven Ave, Rancho Cucamonga, CA, 91730. Phone: (909) 944-5353. Providers update this record themselves, so call before visiting.
How can I verify Ramin Monshizadeh, M.D.'s license?
NPPES lists California license number G86057, 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 Ramin Monshizadeh, M.D. prescribe under Medicare Part D?
In 2024, Ramin Monshizadeh, M.D. had 703 Medicare Part D claims for 157 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
What is Ramin Monshizadeh, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.