Michael J. Manansala, MD
Rheumatology Physician · Berkeley, CA
Michael J. Manansala, MD is a rheumatology physician with a practice address in Berkeley, California, and NPI 1841665411, issued on Dec 8, 2015. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael J. Manansala
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- Practice location
- 2999 Regent St Ste 301, Berkeley, CA 94705
- Phone
- (510) 204-8120
- Enumerated
- Dec 8, 2015
- Record last updated
- Oct 3, 2024
- Fax
- (510) 506-7723
- Medicare enrollment
- Enrolled (PECOS I20240731003793); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 2999 Regent St Ste 301
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vania LinRheumatology Physician1457854242
- Neftali Nevarez, M.D.Rheumatology Physician1508122219
- Sikai Yang, M.D.Rheumatology Physician1871904821
Verify Michael J. Manansala in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average rheumatology physician in 2024
163 Medicare Part D claims for 73 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Prednisone24 claims
- Methotrexate20 claims
- Orencia Clickject13 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: $1,435.41
15 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Sutter Bay Medical FoundationCastro Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael J. Manansala among 926 rheumatology physician records in California
Michael J. Manansala, MD is one of 926 rheumatology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 82% of them.
- NPI issued2015 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2019 · median 2003 among the 641 with a school on file
- Record last updated2024 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Berkeley → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Brian Kaye, M.D.Berkeley, CA 947051679689061
- Vania LinBerkeley, CA 947051457854242
- Molly Magnano, MDBerkeley, CA 947051992743579
- Neftali Nevarez, M.D.Berkeley, CA 947051508122219
- Sikai Yang, M.D.Berkeley, CA 947051871904821
- Paul Feigenbaum, MDOakland, CA 946121710063243
- Chee Chow, MDOakland, CA 946111003994872
- Arezoo Haghshenas, M.D.Oakland, CA 946111881011856
Common questions
What is Michael J. Manansala, MD's NPI number?
Michael J. Manansala, MD's National Provider Identifier (NPI) is 1841665411, issued on Dec 8, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Manansala, MD located?
The NPPES record lists a practice address at 2999 Regent St Ste 301, Berkeley, CA, 94705. Phone: (510) 204-8120. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Manansala, MD's license?
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 Michael J. Manansala, MD prescribe under Medicare Part D?
In 2024, Michael J. Manansala, MD had 163 Medicare Part D claims for 73 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.