NPPES file of Aug 9, 2026

Ravi Kalyamaraman Aiyer, MD

Nephrology Physician · Seattle, WA

Ravi Kalyamaraman Aiyer, MD is a nephrology physician with a practice address in Seattle, Washington, and NPI 1942414123, issued on May 9, 2007. Check the license (Washington MD00045241, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942414123
Name
Ravi Kalyamaraman Aiyer
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
MD00045241 WA
Self-reported in NPPES; status is on the state search
Practice location
515 Minor Ave Ste 300, Seattle, WA 98104
Phone
(206) 386-9500
Enumerated
May 9, 2007
Record last updated
Dec 1, 2022
Fax
(206) 386-9605
Medicaid ID
2025444 WA
Medicare enrollment
Enrolled (PECOS I20130606000027); 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 515 Minor Ave Ste 300

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

  1. Iram Aqeel, MDNephrology Physician1811262330
  2. Donica Badua, ARNPFamily Nurse Practitioner1225647381
  3. Deanna Barber, ARNPFamily Nurse Practitioner1639612617
  4. Paris Barkan, MDNephrology Physician1700235694
  5. Jonathan Barrera-Calix, MDNephrology Physician1356797864
  6. C Beer, MDInternal Medicine Physician1346358959

Verify Ravi Kalyamaraman Aiyer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00045241
    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 Washington 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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Bills Medicare through one group practice

  1. Swedish Health ServicesSeattle, WA

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

Ravi Kalyamaraman Aiyer among 284 nephrology physician records in Washington

Ravi Kalyamaraman Aiyer, MD is one of 284 nephrology physician records with a practice address in Washington. 82% 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 44% of them.

  • NPI issued2007 · 44% of these records are older, 43% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1994 · median 2003 among the 213 with a school on file
  • Record last updated2022 · 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 207RN0300X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Washington

There are 284 nephrology physician records in Washington.

The 8 nephrology physician records with the nearest ZIP codes

  1. Bonnie Collins, M.D.Seattle, WA 981041285622142
  2. Fionnuala Cormack, MDSeattle, WA 981041477656858
  3. Anthony Dash, MDSeattle, WA 981041841285475
  4. Nelson Goes, M.D.Seattle, WA 981041548259229
  5. Yoshio Hall, M.D.Seattle, WA 981041205866787
  6. Leah HaseleySeattle, WA 981041912083700
  7. Michael Kelly, MDSeattle, WA 981041013903780
  8. Rajnish Mehrotra, M.D.Seattle, WA 981041992747471

Common questions

What is Ravi Kalyamaraman Aiyer, MD's NPI number?

Ravi Kalyamaraman Aiyer, MD's National Provider Identifier (NPI) is 1942414123, issued on May 9, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Ravi Kalyamaraman Aiyer, MD located?

The NPPES record lists a practice address at 515 Minor Ave Ste 300, Seattle, WA, 98104. Phone: (206) 386-9500. Providers update this record themselves, so call before visiting.

How can I verify Ravi Kalyamaraman Aiyer, MD's license?

NPPES lists Washington license number MD00045241, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.