NPPES file of Aug 9, 2026

Omar Viswanath, M.D.

Pain Medicine (Anesthesiology) Physician · Phoenix, AZ

Omar Viswanath, M.D. is a pain medicine (anesthesiology) physician with a practice address in Phoenix, Arizona, and NPI 1669813994, issued on Jul 15, 2013. Check the license (Arizona 55185, 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
1669813994
Name
Omar Viswanath
Credential
M.D.
Primary taxonomy
Pain Medicine (Anesthesiology) Physician 207LP2900X
License numbers
55185 AZ
271672 MA
Self-reported in NPPES; status is on the state search
Practice location
2222 E Highland Ave Ste 110, Phoenix, AZ 85016
Phone
(602) 767-0007
Enumerated
Jul 15, 2013
Record last updated
Apr 8, 2024
Medicare enrollment
Enrolled (PECOS I20181009000796); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 2013
Telehealth
Offers telehealth (CMS)
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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8 nearest pain medicine (anesthesiology) physician records → All 92 in Arizona → Look up another NPI →

Also registered at 2222 E Highland Ave Ste 110

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

  1. Ruchir Gupta, MDPain Medicine (Anesthesiology) Physician1265668453
  2. Jeffrey Krause, MDPain Medicine (Anesthesiology) Physician1902167497

Verify Omar Viswanath in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 55185    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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70% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024

533 Medicare Part D claims for 183 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. 266 claims were for opioids.

  1. Omar Viswanath533
  2. Specialty average1,750

Most prescribed

  1. Gabapentin109 claims
  2. Hydrocodone-Acetaminophen94 claims
  3. Oxycodone-Acetaminophen93 claims
  4. Oxycodone Hcl40 claims
  5. Tizanidine Hcl36 claims
  6. Tramadol Hcl23 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: $2,926.71

49 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 2,789 providers of this specialty with any payment received $3,225.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Omar Viswanath$2,926.71
  2. Specialty average$3,225.41

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

  1. Mountain View Headache And Spine Institute PLLCPhoenix, AZ

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

Omar Viswanath among 92 pain medicine (anesthesiology) physician records in Arizona

Omar Viswanath, M.D. is one of 92 pain medicine (anesthesiology) physician records with a practice address in Arizona. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 79% of them.

  • NPI issued2013 · 79% of these records are older, 13% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2013 · median 2006 among the 68 with a school on file
  • Record last updated2024 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pain Medicine (Anesthesiology) Physician providers in Arizona

There are 92 pain medicine (anesthesiology) physician records in Arizona.

All 92 in Arizona → Every provider in Phoenix → Pain Medicine (Anesthesiology) Physician nationwide →

The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Ruchir Gupta, MDPhoenix, AZ 850161265668453
  2. Jeffrey Krause, MDPhoenix, AZ 850161902167497
  3. David Towns, MDPhoenix, AZ 850151326116278
  4. Brittany Aeschlimann, M.D.Phoenix, AZ 850121144682659
  5. Shafik Boyaji, MDPhoenix, AZ 850121710290861
  6. David Currie, M.D.Phoenix, AZ 850121811316490
  7. Mark Kallgren, MDPhoenix, AZ 850121700841541
  8. Leonor Maderazo, MDPhoenix, AZ 850121467423640

Common questions

What is Omar Viswanath, M.D.'s NPI number?

Omar Viswanath, M.D.'s National Provider Identifier (NPI) is 1669813994, issued on Jul 15, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Omar Viswanath, M.D. located?

The NPPES record lists a practice address at 2222 E Highland Ave Ste 110, Phoenix, AZ, 85016. Phone: (602) 767-0007. Providers update this record themselves, so call before visiting.

How can I verify Omar Viswanath, M.D.'s license?

NPPES lists Arizona license number 55185, 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 Omar Viswanath, M.D. prescribe under Medicare Part D?

In 2024, Omar Viswanath, M.D. had 533 Medicare Part D claims for 183 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.