NPPES file of Aug 9, 2026

Sudha Nagalingam, M.D.

Infectious Disease Physician · Tucson, AZ

Sudha Nagalingam, M.D. is an infectious disease physician with a practice address in Tucson, Arizona, and NPI 1811126303, issued on Jul 6, 2009. Check the license (Arizona 50100, as entered in NPPES) on the Arizona Medical Board; 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
1811126303
Name
Sudha Nagalingam
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
50100 AZ
Self-reported in NPPES; status is on the state search
Practice location
1230 S Cherrybell Stra, Tucson, AZ 85713
Phone
(520) 670-3909
Enumerated
Jul 6, 2009
Record last updated
Mar 3, 2025
Fax
(520) 309-2560
Medicare enrollment
Enrolled (PECOS I20150714003310); accepts Medicare assignment
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 1230 S Cherrybell Stra

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

  1. Rachel Abel, LCSW, MSClinical Social Worker1205167442
  2. Robin Acereto, LPCProfessional Counselor1609373026
  3. Nelda Akinbile, M.D.Psychiatry Physician1023112745
  4. Jessica Barnes, LCSWClinical Social Worker1548836992
  5. Jennifer Barrabee, LCSWClinical Social Worker1154691350
  6. Thomas Bartuska, MDPsychiatry Physician1801972245

Verify Sudha Nagalingam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 50100
    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 Arizona 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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5.6 times the Medicare Part D claims of the average infectious disease physician in 2024

3,864 Medicare Part D claims for 195 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims. 89 claims were for opioids.

  1. Sudha Nagalingam3,864
  2. Specialty average689

Most prescribed

  1. Biktarvy294 claims
  2. Tivicay199 claims
  3. Descovy163 claims
  4. Atorvastatin Calcium153 claims
  5. Dovato146 claims
  6. Gabapentin108 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. EL Rio Santa Cruz Neighborhood Health Center, Inc.Tucson, AZ

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

Sudha Nagalingam among 176 infectious disease physician records in Arizona

Sudha Nagalingam, M.D. is one of 176 infectious disease physician records with a practice address in Arizona. 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 2009, is newer than 60% of them.

  • NPI issued2009 · 60% of these records are older, 36% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2007 · median 2001 among the 122 with a school on file
  • Record last updated2025 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Arizona

There are 176 infectious disease physician records in Arizona.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Carlos Perez-Velez, M.D.Tucson, AZ 857131104972728
  2. Angelita Poston Seitz, FNP-CTucson, AZ 857131063984029
  3. Denisse Ramirez, MDTucson, AZ 857131205331428
  4. Andrea Giblin, D.O.Tucson, AZ 857121932377801
  5. Robert Hyland, M.D.Tucson, AZ 857121104855832
  6. Clifford Martin, MDTucson, AZ 857121760429864
  7. Marcelo Nasif, M.D.Tucson, AZ 857121912936907
  8. Steven Oscherwitz, MDTucson, AZ 857121336113539

Common questions

What is Sudha Nagalingam, M.D.'s NPI number?

Sudha Nagalingam, M.D.'s National Provider Identifier (NPI) is 1811126303, issued on Jul 6, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Sudha Nagalingam, M.D. located?

The NPPES record lists a practice address at 1230 S Cherrybell Stra, Tucson, AZ, 85713. Phone: (520) 670-3909. Providers update this record themselves, so call before visiting.

How can I verify Sudha Nagalingam, M.D.'s license?

NPPES lists Arizona license number 50100, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sudha Nagalingam, M.D. prescribe under Medicare Part D?

In 2024, Sudha Nagalingam, M.D. had 3,864 Medicare Part D claims for 195 beneficiaries; the average among infectious disease physician prescribers was 689. 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.