Mark McAllister, MD
Retina Specialist (Ophthalmology) Physician · Sacramento, CA
Mark McAllister, MD is a retina specialist (ophthalmology) physician with a practice address in Sacramento, California, and NPI 1669934394, issued on Apr 2, 2019. Check the license (California A196061, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark McAllister
- Credential
- MD
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- A196061 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3 Park Center Dr Ste 100, Sacramento, CA 95825
- Phone
- (916) 454-4861
- Enumerated
- Apr 2, 2019
- Record last updated
- Jan 9, 2026
- Medicare enrollment
- Enrolled (PECOS I20240814001361); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2019
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 205 in California → Look up another NPI →
Also registered at 3 Park Center Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eliot Dow, M.D., PH.D.Retina Specialist (Ophthalmology) Physician1740711647
- Maryam Ghiassi, MDRetina Specialist (Ophthalmology) Physician1346773934
- Natalie Huang, MDRetina Specialist (Ophthalmology) Physician1366948598
- Meera Ramakrishnan, MDRetina Specialist (Ophthalmology) Physician1659802387
- Nakul Singh, MDOphthalmology Physician1649776535
- Dorotheea Warmerdam, MDOphthalmology Physician1033228739
Verify Mark McAllister in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A196061Check 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 retina specialist (ophthalmology) physician in 2024
157 Medicare Part D claims for 73 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Prednisolone Acetate23 claims
- Brimonidine Tartrate20 claims
- Latanoprost19 claims
- Dorzolamide-Timolol14 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): 99.5 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).
Industry payments in 2024: $360.37
5 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 1,253 providers of this specialty with any payment received $7,667.49 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 one group practice
- Vitreo-Retinal Medical Group, Inc.Sacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark McAllister among 205 retina specialist (ophthalmology) physician records in California
Mark McAllister, MD 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 2019, is newer than 89% of them.
- NPI issued2019 · 89% of these records are older, 7% newer
- In a Medicare fileYes · 98% of these records are
- In the CMS Doctors and Clinicians fileYes · 92% of these records are
- Graduated2019 · median 2007 among the 189 with a school on file
- Record last updated2026 · 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 Sacramento → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Philip Desouza, MDSacramento, CA 958251336526888
- Eliot Dow, M.D., PH.D.Sacramento, CA 958251740711647
- Maryam Ghiassi, MDSacramento, CA 958251346773934
- Natalie Huang, MDSacramento, CA 958251366948598
- Meera Ramakrishnan, MDSacramento, CA 958251659802387
- Margaret Chang, M.D.Sacramento, CA 958191477504405
- David Cupp, MDSacramento, CA 958191497901565
- Robert Equi, M.D.Sacramento, CA 958191497864664
Common questions
What is Mark McAllister, MD's NPI number?
Mark McAllister, MD's National Provider Identifier (NPI) is 1669934394, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mark McAllister, MD located?
The NPPES record lists a practice address at 3 Park Center Dr Ste 100, Sacramento, CA, 95825. Phone: (916) 454-4861. Providers update this record themselves, so call before visiting.
How can I verify Mark McAllister, MD's license?
NPPES lists California license number A196061, 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 Mark McAllister, MD prescribe under Medicare Part D?
In 2024, Mark McAllister, MD had 157 Medicare Part D claims for 73 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
What is Mark McAllister, MD's MIPS final score?
The 2023 MIPS final score is 99.5 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.