Viswam Siva Nair, MD
Pulmonary Disease Physician · Berkeley, CA
Viswam Siva Nair, MD is a pulmonary disease physician with a practice address in Berkeley, California, and NPI 1336336460, issued on Oct 2, 2007. Check the license (California A93740, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Viswam Siva Nair
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License numbers
- A93740 CA
MD60959262 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2850 Telegraph Ave Ste 120, Berkeley, CA 94705
- Phone
- (510) 204-8140
- Enumerated
- Oct 2, 2007
- Record last updated
- Sep 18, 2025
- Fax
- (510) 506-7721
- Medicaid ID
- 1336336460 WA
- Medicare enrollment
- Enrolled (PECOS I20191002003125); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 1,443 in California → Look up another NPI →
Also registered at 2850 Telegraph Ave Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Ault, M.S., D.P.T., D.O.Pain Medicine (Psychiatry & Neurology) Physician1205953247
- Kelley Booth, NPFamily Nurse Practitioner1053830851
- Juliana Fritz, PA-CPhysician Assistant1912561689
- Christina Kwan, MDEndocrinology, Diabetes & Metabolism Physician1699193888
- Zachary Landman, M.D.Interventional Pain Medicine Physician1780947408
- Sepehr Rejai, M.D.Pain Medicine Physician1760825806
Verify Viswam Siva Nair in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A93740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average pulmonary disease physician in 2024
19 Medicare Part D claims, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 63% of 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 2 group practices
- Sutter Bay Medical FoundationCastro Valley, CA
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Viswam Siva Nair among 1,443 pulmonary disease physician records in California
Viswam Siva Nair, MD is one of 1,443 pulmonary disease physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 49% of them.
- NPI issued2007 · 49% of these records are older, 40% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2004 · median 2002 among the 1,061 with a school on file
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in California
There are 1,443 pulmonary disease physician records in California.
All 1,443 in California → Every provider in Berkeley → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Rachel Dotson, M.D.Berkeley, CA 947051760688386
- Gerald Meyers, M.D.Berkeley, CA 947051013950575
- Joshua Samuel, M.D.Berkeley, CA 947051902149263
- Oscar Scherer, M.D.Berkeley, CA 947051689617599
- Kovid Trivedi, M.B.B.S.Berkeley, CA 947051033406566
- Caryn Lum, MDOakland, CA 946121497738884
- Kara Rakoczy-Byun, MDOakland, CA 946121912987934
- Elena Kennedy, MDOakland, CA 946111104280833
Common questions
What is Viswam Siva Nair, MD's NPI number?
Viswam Siva Nair, MD's National Provider Identifier (NPI) is 1336336460, issued on Oct 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Viswam Siva Nair, MD located?
The NPPES record lists a practice address at 2850 Telegraph Ave Ste 120, Berkeley, CA, 94705. Phone: (510) 204-8140. Providers update this record themselves, so call before visiting.
How can I verify Viswam Siva Nair, MD's license?
NPPES lists California license number A93740, 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 Viswam Siva Nair, MD prescribe under Medicare Part D?
In 2024, Viswam Siva Nair, MD had 19 Medicare Part D claims; the average among pulmonary disease physician prescribers was 1,425. 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.