NPPES file of Aug 9, 2026

Tina Dewan Mahajan, M.D,

Rheumatology Physician · Omaha, NE

Tina Dewan Mahajan, M.D, is a rheumatology physician with a practice address in Omaha, Nebraska, and NPI 1730399718, issued on May 22, 2007. Check the license (Nebraska 28404, as entered in NPPES) on the Nebraska Board of Medicine and Surgery; 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
1730399718
Name
Tina Dewan Mahajan
Credential
M.D,
Primary taxonomy
Rheumatology Physician 207RR0500X
License numbers
28404 NE
A110125 CA
N5826 TX
0101253036 VA
Self-reported in NPPES; status is on the state search
Practice location
988102 Nebraska Medical Ctr, Omaha, NE 68198
Phone
(402) 595-1227
Enumerated
May 22, 2007
Record last updated
Jun 25, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(402) 595-1284
Medicare enrollment
Enrolled (PECOS I20150702000668); accepts Medicare assignment
Medical or professional school
Saint Louis University School Of Medicine, 2005
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 988102 Nebraska Medical Ctr

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

  1. Minnie Abromowitch, MDPediatric Hematology & Oncology Physician1346294014
  2. Ellen Addison, APRNNurse Practitioner1831422302
  3. Mojtaba Akhtari, M.D.Hematology & Oncology Physician1922286954
  4. Nicole Allison, CRNACertified Registered Nurse Anesthetist1265390520
  5. Christine Anderson, CRNACertified Registered Nurse Anesthetist1508823261
  6. Courtney AndersonClinical Social Worker1649696915

Verify Tina Dewan Mahajan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNebraska Board of Medicine and Surgery
    Search for license 28404
    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 Nebraska 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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33% fewer Medicare Part D claims than the average rheumatology physician in 2024

1,323 Medicare Part D claims for 245 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 30 claims were for opioids.

  1. Tina Mahajan1,323
  2. Specialty average1,978

Most prescribed

  1. Prednisone222 claims
  2. Methotrexate221 claims
  3. Hydroxychloroquine Sulfate176 claims
  4. Celecoxib91 claims
  5. Allopurinol46 claims
  6. Leflunomide36 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. Unmc PhysiciansOmaha, NE

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

Tina Dewan Mahajan among 46 rheumatology physician records in Nebraska

Tina Dewan Mahajan, M.D, is one of 46 rheumatology physician records with a practice address in Nebraska. 83% 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 57% of them.

  • NPI issued2007 · 57% of these records are older, 35% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2005 · median 2001 among the 31 with a school on file
  • Record last updated2015 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Nebraska practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Nebraska

There are 46 rheumatology physician records in Nebraska.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Amy Cannella, MDOmaha, NE 681981578521357
  2. Nattanicha ChaisrimaneepanOmaha, NE 681981992484414
  3. Alan Erickson, MDOmaha, NE 681981043286693
  4. Rachel Jenkins, MDOmaha, NE 681981184366650
  5. Lynell Klassen, MDOmaha, NE 681981710936877
  6. Samantha Kohn, MDOmaha, NE 681981437779782
  7. Ming Tuen LamOmaha, NE 681981831886555
  8. Ted Mikuls, MDOmaha, NE 681981255382743

Common questions

What is Tina Dewan Mahajan, M.D,'s NPI number?

Tina Dewan Mahajan, M.D,'s National Provider Identifier (NPI) is 1730399718, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Tina Dewan Mahajan, M.D, located?

The NPPES record lists a practice address at 988102 Nebraska Medical Ctr, Omaha, NE, 68198. Phone: (402) 595-1227. Providers update this record themselves, so call before visiting.

How can I verify Tina Dewan Mahajan, M.D,'s license?

NPPES lists Nebraska license number 28404, as entered by the provider. Search the Nebraska Board of Medicine and Surgery at https://www.nebraska.gov/LISSearch/search.cgi. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Tina Dewan Mahajan, M.D, prescribe under Medicare Part D?

In 2024, Tina Dewan Mahajan, M.D, had 1,323 Medicare Part D claims for 245 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.