Nataraj Shanmugam, M.D.
Diagnostic Radiology Physician · Sacramento, CA
Nataraj Shanmugam, M.D. is a diagnostic radiology physician with a practice address in Sacramento, California, and NPI 1659535102, issued on Jul 14, 2008. Check the license (California A115371, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nataraj Shanmugam
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- A115371 CA
42869 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3000 Q St FL 1, Sacramento, CA 95816
- Phone
- (916) 733-3301
- Enumerated
- Jul 14, 2008
- Record last updated
- Feb 11, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (916) 281-3882
- Medicaid ID
- 524526 AZ
- Medicare enrollment
- Enrolled (PECOS I20111031000118); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 3000 Q St FL 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nataraj Shanmugam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A115371Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17.71
1 payment: food and beverage; the largest payer was GE Healthcare. The 8,048 providers of this specialty with any payment received $2,488.38 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
- Dignity Health Medical FoundationCarmichael, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nataraj Shanmugam among 4,500 diagnostic radiology physician records in California
Nataraj Shanmugam, M.D. is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.
- NPI issued2008 · 59% of these records are older, 36% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2000 · median 2004 among the 3,130 with a school on file
- Record last updated2020 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Sacramento → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- George Bolton, M.D.Sacramento, CA 958161568469708
- Nicole Carbo, M.D.Sacramento, CA 958161902803059
- Christopher Chong, M.D.Sacramento, CA 958161851397772
- Paul Dong, M.D.Sacramento, CA 958161447257589
- Daniel Ichel, M.D.Sacramento, CA 958161386648061
- Joon Hak Lee, M.D.Sacramento, CA 958161215933874
- Robert Lincoln, M.D.Sacramento, CA 958161457357170
- Don Loomer, M.D.Sacramento, CA 958161124024062
Common questions
What is Nataraj Shanmugam, M.D.'s NPI number?
Nataraj Shanmugam, M.D.'s National Provider Identifier (NPI) is 1659535102, issued on Jul 14, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Nataraj Shanmugam, M.D. located?
The NPPES record lists a practice address at 3000 Q St FL 1, Sacramento, CA, 95816. Phone: (916) 733-3301. Providers update this record themselves, so call before visiting.
How can I verify Nataraj Shanmugam, M.D.'s license?
NPPES lists California license number A115371, 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.
What is Nataraj Shanmugam, M.D.'s MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.