Dr. Karun Madhav Nair, MD
- Part D claims, 2024
- 99
- Hospital affiliations
- 1
- Industry payments
- $1,465
- Medical group
- 1
- State license
- 1
- Practice address
- 120 La Casa Via Suite 204 Suite 204, Walnut Creek, CA 94598-3007
- Practice phone
- Call (925) 210-1050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Northern California Arthritis Center
Primary care practice · Walnut Creek, California
Find Dr. Nair's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Karun Madhav Nair is a rheumatologist in Walnut Creek, California
Dr. Nair practices at Northern California Arthritis Center in Walnut Creek, California.
Dr. Nair's NPI, 1710514724, was assigned on March 27, 2020. Dr. Nair holds Illinois license 036.164277.
- NPI
- 1710514724NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678983772
- NPI enumeration date
- March 27, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (925) 210-1050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Karun Madhav Nair practices at Northern California Arthritis Center in Walnut Creek, California
Dr. Nair's primary practice is Northern California Arthritis Center, at 120 La Casa Via Suite 204 Suite 204, Walnut Creek, CA 94598-3007. The practice phone is (925) 210-1050.
- Northern California Arthritis Center120 La Casa Via Suite 204 Suite 204, Walnut Creek, CA 94598-3007Phone(925) 210-1050
Source: Dmand AI Affiliation Data
Dr. Karun Madhav Nair is affiliated with 2 sites of care and 1 medical group
Dr. Nair's primary practice is Northern California Arthritis Center in Walnut Creek, California. Dr. Nair is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is Northern California Arthritis Center.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Karun Madhav Nair's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nair practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern California Arthritis Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karun Madhav Nair is one of 821 rheumatologists in California
Rheumatology is Dr. Nair's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Nair is licensed in Illinois.
Specialties and state licenses
- Rheumatology, IllinoisPrimary
Rheumatologists near Dr. Nair
Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Karun Madhav Nair's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Nair's median patient age at 62, with 64% women.
Dr. Nair's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women64%
- Men34%
Source: Dmand AI Patient Panel Data
Dr. Karun Madhav Nair wrote 99 Medicare Part D claims in 2024
In 2024, Dr. Nair wrote 99 Medicare Part D claims for 30 patients. 97% of them were for generic drugs. CMS names the drug for 49 of them, across 3 drugs with 11 or more claims each, at $438 in total drug cost. In 2023, CMS named 34 claims across 2 drugs.
Dr. Nair's Part D claims by kind of drug, 2024
- Generic96 claims97%
- Brand-name and other3 claims3%
Dr. Nair's most prescribed drugs by claims, 2024
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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 342024: 4944%
Drugs named by CMS: 3 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Karun Madhav Nair offers telehealth to Medicare patients
Dr. Nair accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Nair as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Karun Madhav Nair received $1,465 in industry payments from 2023 to 2025
CMS Open Payments shows 50 general payments to Dr. Nair from 17 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $401.
General payments to Dr. Nair by program year, 2023 to 2025
Companies that paid Dr. Nair the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Karun Madhav Nair'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 Data |
| 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)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Karun Madhav Nair
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. Karun Madhav Nair's NPI number?
Dr. Karun Madhav Nair's NPI number is 1710514724. It was assigned on March 27, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Karun Madhav Nair?
Dr. Karun Madhav Nair is a rheumatologist in Walnut Creek, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Karun Madhav Nair practice?
Dr. Nair practices at 120 La Casa Via Suite 204 Suite 204, Walnut Creek, CA 94598-3007. Dr. Nair's primary practice is Northern California Arthritis Center in Walnut Creek, California.
What is Dr. Karun Madhav Nair's office phone number?
The practice phone on file for Dr. Nair is (925) 210-1050.
What is Dr. Karun Madhav Nair's medical license number?
Dr. Nair holds Illinois license 036.164277.
Which hospitals is Dr. Karun Madhav Nair affiliated with?
Dr. Nair is affiliated with John Muir Medical Center, Walnut Creek.
What medical group is Dr. Karun Madhav Nair part of?
Dr. Nair is linked to Northern California Arthritis Center.
Does Dr. Karun Madhav Nair accept Medicare?
Yes. CMS lists Dr. Nair as accepting Medicare assignment.
Does Dr. Karun Madhav Nair offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Nair as offering telehealth services.
What drugs does Dr. Karun Madhav Nair prescribe most?
In 2024 Medicare Part D data, Dr. Nair's most prescribed drugs by claims were Duloxetine HCl, Prednisone and Azathioprine.
Has Dr. Karun Madhav Nair received payments from drug or device companies?
CMS Open Payments shows $1,465 in general payments to Dr. Nair from 17 companies from 2023 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Karun Madhav Nair been practicing?
Dr. Nair graduated from medical school in 2020, 6 years ago.
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