NPPES file of Aug 9, 2026

David Maniscalco, M.D.

Rheumatology Physician · Santa Rosa, CA

David Maniscalco, M.D. is a rheumatology physician with a practice address in Santa Rosa, California, and NPI 1386031268, issued on Apr 19, 2015. Check the license (California 1162306, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386031268
Name
David Maniscalco
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
1162306 CA
Self-reported in NPPES; status is on the state search
Practice location
3883 Airway Dr Ste 130, Santa Rosa, CA 95403
Phone
(707) 521-7999
Enumerated
Apr 19, 2015
Record last updated
Sep 2, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(707) 521-7703
Medicare enrollment
Enrolled (PECOS I20200909000365); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3883 Airway Dr Ste 130

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Todd Hofeling, M.D.Rheumatology Physician1447451935

Verify David Maniscalco in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 1162306
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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24% more Medicare Part D claims than the average rheumatology physician in 2024

2,462 Medicare Part D claims for 338 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. David Maniscalco2,462
  2. Specialty average1,978

Most prescribed

  1. Hydroxychloroquine Sulfate563 claims
  2. Prednisone528 claims
  3. Methotrexate397 claims
  4. Alendronate Sodium85 claims
  5. Sulfasalazine81 claims
  6. Enbrel Sureclick67 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.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

David Maniscalco among 926 rheumatology physician records in California

David Maniscalco, M.D. 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
  • Graduated2015 · median 2003 among the 641 with a school on file
  • Record last updated2020 · 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.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Todd Hofeling, M.D.Santa Rosa, CA 954031447451935
  2. Khashayar Khosraviani, MDSanta Rosa, CA 954031144592205
  3. Richard Zweig, MDSanta Rosa, CA 954031124102298
  4. Lisa Kremer, M.D.Santa Rosa, CA 954051144262213
  5. Jack Waxman, M.D.Santa Rosa, CA 954051104824994
  6. Donald Whisler, M.D.Santa Rosa, CA 954051639516149
  7. Iraj Sabahi, M.D.Turlock, CA 953821881886042
  8. Sahdev Saharan, M.D.Tracy, CA 953761588875512

Common questions

What is David Maniscalco, M.D.'s NPI number?

David Maniscalco, M.D.'s National Provider Identifier (NPI) is 1386031268, issued on Apr 19, 2015. An NPI identifies a provider in billing; it is not a license.

Where is David Maniscalco, M.D. located?

The NPPES record lists a practice address at 3883 Airway Dr Ste 130, Santa Rosa, CA, 95403. Phone: (707) 521-7999. Providers update this record themselves, so call before visiting.

How can I verify David Maniscalco, M.D.'s license?

NPPES lists California license number 1162306, 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 David Maniscalco, M.D. prescribe under Medicare Part D?

In 2024, David Maniscalco, M.D. had 2,462 Medicare Part D claims for 338 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.