NPPES file of Aug 9, 2026

Ulaganathan Natarajan, MD MPH

Internal Medicine Physician · Portland, OR

Ulaganathan Natarajan, MD MPH is an internal medicine physician with a practice address in Portland, Oregon, and NPI 1407437007, issued on Apr 16, 2021. Check the license (Oregon MD219411, as entered in NPPES) on the Oregon 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
1407437007
Name
Ulaganathan Natarajan
Credential
MD MPH
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD219411 OR
Self-reported in NPPES; status is on the state search
Practice location
4805 NE Glisan St Ste BG05, Portland, OR 97213
Phone
(503) 215-2392
Enumerated
Apr 16, 2021
Record last updated
Sep 30, 2024
Fax
(032) 156-9185
Medicare enrollment
Enrolled (PECOS I20240806001891); 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 4805 NE Glisan St Ste BG05

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

  1. Oliver Arquero, MDInternal Medicine Physician1962713776
  2. Devon Baker, MDInternal Medicine Physician1912361833
  3. Nikhil Batra, MDFamily Medicine Physician1205091576
  4. Jacob Casey, MDInternal Medicine Physician1942689930
  5. Luke Clifford, DOInternal Medicine Physician1750825931
  6. Elise Larson, MDInternal Medicine Physician1043673619

Verify Ulaganathan Natarajan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD219411
    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 Oregon 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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77% fewer Medicare Part D claims than the average internal medicine physician in 2024

719 Medicare Part D claims for 102 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 22 claims were for opioids.

  1. Ulaganathan Natarajan719
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium69 claims
  2. Amlodipine Besylate52 claims
  3. Lisinopril33 claims
  4. Losartan Potassium33 claims
  5. Carvedilol26 claims
  6. Furosemide25 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.

Industry payments in 2024: $16.46

1 payment: food and beverage; the largest payer was Paratek Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ulaganathan Natarajan$16.46
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Providence Health And Services - OregonPortland, OR
  2. Providence Health And Services OregonPortland, OR

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

Ulaganathan Natarajan among 2,116 internal medicine physician records in Oregon

Ulaganathan Natarajan, MD MPH is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 7% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2013 · median 2008 among the 1,232 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

889 internal medicine physician records list a practice address in Portland

They are 889 of the 42,088 NPPES records with a practice address in Portland, and 2,116 internal medicine physician records in Oregon.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Andris Antoniskis, MDPortland, OR 972131528067972
  2. Shikha Arun, MDPortland, OR 972131306881834
  3. Christopher BaronePortland, OR 972131831187657
  4. Ruben Halperin, MDPortland, OR 972131457306763
  5. Kimberly Herder, MDPortland, OR 972131811975741
  6. Jeffrey Horacek, MDPortland, OR 972131790721215
  7. Shannon Jackson, MDPortland, OR 972131558301168
  8. William Kennedy, DOPortland, OR 972131467431452

Common questions

What is Ulaganathan Natarajan, MD MPH's NPI number?

Ulaganathan Natarajan, MD MPH's National Provider Identifier (NPI) is 1407437007, issued on Apr 16, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Ulaganathan Natarajan, MD MPH located?

The NPPES record lists a practice address at 4805 NE Glisan St Ste BG05, Portland, OR, 97213. Phone: (503) 215-2392. Providers update this record themselves, so call before visiting.

How can I verify Ulaganathan Natarajan, MD MPH's license?

NPPES lists Oregon license number MD219411, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ulaganathan Natarajan, MD MPH prescribe under Medicare Part D?

In 2024, Ulaganathan Natarajan, MD MPH had 719 Medicare Part D claims for 102 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.