NPPES file of Aug 9, 2026

Adam Mark Larsen, DO

Pediatric Cardiology Physician · Spokane, WA

Adam Mark Larsen, DO is a pediatric cardiology physician with a practice address in Spokane, Washington, and NPI 1841751179, issued on Mar 28, 2019. Check the license (Washington OP61652713, 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
1841751179
Name
Adam Mark Larsen
Credential
DO
Primary taxonomy
Pediatric Cardiology Physician 2080P0202X
License numbers
OP61652713 WA
6999 OK
Self-reported in NPPES; status is on the state search
Practice location
101 W 8TH Ave Ste 4300, Spokane, WA 99204
Phone
(509) 747-6707
Enumerated
Mar 28, 2019
Record last updated
May 21, 2025
Medicare enrollment
Enrolled (PECOS I20250714002294); 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 101 W 8TH Ave Ste 4300

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

  1. Daniel Boyd, PA-CPhysician Assistant1386162998
  2. Steven Healan, M.D.Pediatric Cardiology Physician1811275944
  3. Madeleine Lewis, LICSW,Social Worker1558561829
  4. Dean Lorimer, MDPediatric Cardiology Physician1669859823

Verify Adam Mark Larsen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP61652713
    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. Providence Health And Services WashingtonSpokane, WA

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

Adam Mark Larsen among 89 pediatric cardiology physician records in Washington

Adam Mark Larsen, DO is one of 89 pediatric cardiology physician records with a practice address in Washington. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 94% of them.

  • NPI issued2019 · 94% of these records are older, 3% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated2019 · median 2006 among the 48 with a school on file
  • Record last updated2025 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Cardiology Physician providers in Washington

There are 89 pediatric cardiology physician records in Washington.

The 8 pediatric cardiology physician records with the nearest ZIP codes

  1. Charles Anderson, MDSpokane, WA 992041316990666
  2. Hrair Garabedian, MDSpokane, WA 992041871544429
  3. Carl Garabedian, MDSpokane, WA 992041083666127
  4. Steven Healan, M.D.Spokane, WA 992041811275944
  5. Richard Jensen, MDSpokane, WA 992041699728022
  6. Dean Lorimer, MDSpokane, WA 992041669859823
  7. Jennifer Plymale, M.D.Spokane, WA 992041265456008
  8. Phat Pham, MDRichland, WA 993521194761312

Common questions

What is Adam Mark Larsen, DO's NPI number?

Adam Mark Larsen, DO's National Provider Identifier (NPI) is 1841751179, issued on Mar 28, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Adam Mark Larsen, DO located?

The NPPES record lists a practice address at 101 W 8TH Ave Ste 4300, Spokane, WA, 99204. Phone: (509) 747-6707. Providers update this record themselves, so call before visiting.

How can I verify Adam Mark Larsen, DO's license?

NPPES lists Washington license number OP61652713, 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.