Mark Joel Mannis, M.D.
Specialist · Sacramento, CA
Mark Joel Mannis, M.D. is a specialist with a practice address in Sacramento, California, and NPI 1205811510, issued on Dec 8, 2005. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Joel Mannis
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- Practice location
- 4860 Y St, Sacramento, CA 95817
- Phone
- (916) 734-6957
- Enumerated
- Dec 8, 2005
- Record last updated
- Dec 12, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (916) 734-6197
- Medicaid ID
- GR002104I CA
- Medicare enrollment
- Enrolled (PECOS I20080807000324); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 1975
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 4860 Y St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Joel Mannis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average specialist in 2024
486 Medicare Part D claims for 112 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Prednisolone Acetate122 claims
- Polymyxin B Sul-Trimethoprim51 claims
- Erythromycin33 claims
- Fluorometholone27 claims
- Difluprednate22 claims
- Ofloxacin21 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): 90.9 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
- Regents OF The Univ OF CASacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Joel Mannis among 5,749 specialist records in California
Mark Joel Mannis, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1975 · median 1989 among the 1,075 with a school on file
- Record last updated2011 · 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).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Sacramento → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Robert Cardiff, M.D., PH.D.Sacramento, CA 958171871575597
- Jyuhn-Mirng Chen, M.D.Sacramento, CA 958171588647903
- Regina Gandour-Edwards, M.D.Sacramento, CA 958171285616904
- Claudia Greco, M.D.Sacramento, CA 958171629050356
- Ralph Green, M.D.Sacramento, CA 958171700868437
- Lydia Howell, M.D.Sacramento, CA 958171285616920
- Hanne Jensen, M.D.Sacramento, CA 958171598747222
- Thomas Konia, M.D.Sacramento, CA 958171306828033
Common questions
What is Mark Joel Mannis, M.D.'s NPI number?
Mark Joel Mannis, M.D.'s National Provider Identifier (NPI) is 1205811510, issued on Dec 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Joel Mannis, M.D. located?
The NPPES record lists a practice address at 4860 Y St, Sacramento, CA, 95817. Phone: (916) 734-6957. Providers update this record themselves, so call before visiting.
How can I verify Mark Joel Mannis, M.D.'s license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Joel Mannis, M.D. prescribe under Medicare Part D?
In 2024, Mark Joel Mannis, M.D. had 486 Medicare Part D claims for 112 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Mark Joel Mannis, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.9 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.