Arthritis, RheumatoidAutoimmune DiseasesDysbiosis
Dr. Renuka Rajendra Nayak, MD, PhD
NPI1073889895
- Medicare services, 2021
- 21
- Part D claims, 2021
- 51
- Publications
- 25
- Hospital affiliations
- 1
- Industry payments
- $578
- Practice address
- 4150 Clement Street, San Francisco, CA 94121
- Practice phone
- Call (415) 221-4810
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nayak's professional email, personal email and mobile number
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Dr. Renuka Rajendra Nayak is an internist in San Francisco, California
Dr. Nayak practices at San Francisco VA Medical Center in San Francisco, California, part of Veterans Health Administration.
Dr. Nayak's NPI, 1073889895, was assigned on March 27, 2012. Dr. Nayak graduated from Perelman School of Medicine - Philadelphia in 2012. Dr. Nayak holds California license 129193.
NPI and contact details
- NPI
- 1073889895NPI Registry (opens in a new tab)
- NPI enumeration date
- March 27, 2012
- NPI status
- Active
- Practice phone
- (415) 221-4810
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Renuka Rajendra Nayak practices at San Francisco VA Medical Center in San Francisco, California
Dr. Nayak's primary practice is San Francisco VA Medical Center, at 4150 Clement Street, San Francisco, CA 94121 in San Francisco County. The practice phone is (415) 221-4810.
- San Francisco VA Medical Center4150 Clement Street, San Francisco, CA 94121 · San Francisco CountyPhone(415) 221-4810
Source: Dmand AI Affiliation Data
Dr. Renuka Rajendra Nayak is affiliated with 1 site of care
Dr. Nayak's primary practice is San Francisco VA Medical Center in San Francisco, California, part of Veterans Health Administration. Dr. Nayak's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Renuka Rajendra Nayak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nayak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Francisco VA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Renuka Rajendra Nayak is one of 16,751 internists in California
Internal medicine is Dr. Nayak's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nayak is board certified in internal medicine by the American Board of Internal Medicine. Dr. Nayak is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Nayak
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California1,127internists in San Francisco43internists at San Francisco VA Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Renuka Rajendra Nayak billed Medicare for 21 services in 2021
CMS data shows 21 Medicare services from Dr. Nayak across 1 procedure code in 2021, all of them office visits. Medicare paid $2,387 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202121
Paid by Medicare$2,387
Procedure codes1
Dr. Nayak's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 312021: 2132%
Dr. Nayak compared with the California median for internists, 2021
- Dr. Nayak
- California median
- Medicare services
- 21vs 36194% below
- Part D claims
- 51vs 42188% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Nayak's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Nayak?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nayak and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Renuka Rajendra Nayak's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Nayak's median patient age at 43, with 100% women.
Dr. Nayak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Renuka Rajendra Nayak wrote 51 Medicare Part D claims in 2021
In 2021, Dr. Nayak wrote 51 Medicare Part D claims. They cover 3 drugs, with $84,594 in total drug cost. In 2020, CMS named 91 claims across 4 drugs.
Part D claims, 202151
Drugs named by CMS3
Total drug cost$84,594
Dr. Nayak's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 912021: 5144%
Drugs named by CMS: 3 in 2021, 4 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Renuka Rajendra Nayak has 25 publications on record
Dmand AI links 25 papers to Dr. Nayak, published from 2006 to 2025. 2020 was the busiest year, with 4. The most frequent topics are Gastrointestinal Microbiome, Arthritis, Rheumatoid and Bacteria. Dr. Nayak has published most often in Cell Host Microbe. Dr. Nayak's most frequent co-authors are Jose U. Scher, MD, Steven B. Abramson, MD and Jose Clemente, MD.
Papers25
Years published2006 to 2025
Dr. Nayak's papers by year, 2006 to 2025
Topics Dr. Nayak writes about most
- Gastrointestinal Microbiome
- Arthritis, Rheumatoid
- Bacteria
- Autoimmune Diseases
- Methotrexate
- Precision Medicine
- Antirheumatic Agents
- Autoimmunity
Dr. Nayak's most frequent co-authors
- Jose U. Scher, MD6 shared papers
- Steven B. Abramson, MD2 shared papers
- Jose Clemente, MD2 shared papers
Recent publications by Dr. Nayak
Immunol Rev
Autoimmune DiseasesAutoimmunityGastrointestinal Microbiome
See who Dr. Nayak researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nayak works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Renuka Rajendra Nayak received $578 in industry payments from 2021 to 2025
CMS Open Payments shows 18 general payments to Dr. Nayak from 3 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 83% of the total. Abbvie Inc. paid the most, $398.
General payments to Dr. Nayak by program year, 2021 to 2025
General payments to Dr. Nayak by kind, 2021 to 2025
$578in total
- Food and beverage$47883%
- Education$10017%
Companies that paid Dr. Nayak the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Renuka Rajendra Nayak graduated from Perelman School of Medicine - Philadelphia
Dr. Nayak graduated from Perelman School of Medicine - Philadelphia in 2012.
- Medical school
- Board certified in internal medicine
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Dr. Renuka Rajendra Nayak accepts plans from 7 insurance carriers
Dr. Nayak is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Elevance
- Molina
Plan types Dr. Nayak accepts, by number of carriers
- Medicare6
- PPO5
- HMO3
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Renuka Rajendra Nayak's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Renuka Rajendra Nayak
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Renuka Rajendra Nayak's NPI number?
Dr. Renuka Rajendra Nayak's NPI number is 1073889895. It was assigned on March 27, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Renuka Rajendra Nayak?
Dr. Renuka Rajendra Nayak is an internist in San Francisco, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Renuka Rajendra Nayak practice?
Dr. Nayak practices at 4150 Clement Street, San Francisco, CA 94121. Dr. Nayak's primary practice is San Francisco VA Medical Center in San Francisco, California, part of Veterans Health Administration.
What is Dr. Renuka Rajendra Nayak's office phone number?
The practice phone on file for Dr. Nayak is (415) 221-4810.
What is Dr. Renuka Rajendra Nayak's medical license number?
Dr. Nayak holds California license 129193.
Which hospitals is Dr. Renuka Rajendra Nayak affiliated with?
Dr. Nayak practices at San Francisco VA Medical Center in San Francisco, California.
Does Dr. Renuka Rajendra Nayak accept Medicare?
Yes. CMS data shows Dr. Nayak billed Medicare for 21 services in 2021.
Is Dr. Renuka Rajendra Nayak board certified?
Yes. Dr. Nayak is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Renuka Rajendra Nayak bill to Medicare?
In 2021, Dr. Nayak's most billed Medicare services were office visit, established patient (99215).
Where did Dr. Renuka Rajendra Nayak go to medical school?
Dr. Nayak graduated from Perelman School of Medicine - Philadelphia in 2012.
Show 6 more questionsShow fewer questions
What drugs does Dr. Renuka Rajendra Nayak prescribe most?
In 2021 Medicare Part D data, Dr. Nayak's most prescribed drugs by claims were Hydroxychloroquine Sulfate, Prednisone and Enbrel.
Has Dr. Renuka Rajendra Nayak received payments from drug or device companies?
CMS Open Payments shows $578 in general payments to Dr. Nayak from 3 companies from 2021 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Renuka Rajendra Nayak been practicing?
Dr. Nayak graduated from medical school in 2012, 14 years ago.
Does Dr. Renuka Rajendra Nayak do research?
Dmand AI links 25 publications to Dr. Nayak, published from 2006 to 2025.
Who does Dr. Renuka Rajendra Nayak publish with?
Dr. Nayak's most frequent co-authors are Jose U. Scher, MD (6 shared papers), Steven B. Abramson, MD (2 shared papers) and Jose Clemente, MD (2 shared papers).
What insurance does Dr. Renuka Rajendra Nayak accept?
Dr. Nayak is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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