NPPES file of Aug 9, 2026

Darren Charles Hollenbaugh, MD, FACC

Cardiovascular Disease Physician · Spokane Valley, WA

Darren Charles Hollenbaugh, MD, FACC is a cardiovascular disease physician with a practice address in Spokane Valley, Washington, and NPI 1861425571, issued on Jul 8, 2006. Check the license (Washington MD-28796, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861425571
Name
Darren Charles Hollenbaugh
Credential
MD, FACC
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
MD-28796 WA
Self-reported in NPPES; status is on the state search
Practice location
16528 E Desmet CT Ste B3200, Spokane Valley, WA 99216
Phone
(509) 455-8820
Enumerated
Jul 8, 2006
Record last updated
Mar 20, 2026
Fax
(509) 838-4978
Medicaid IDs
8192718 WA
0003152800 ID
Medicare enrollment
Enrolled (PECOS I20091014000090); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 1989
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 16528 E Desmet CT Ste B3200

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

  1. Nancy Koster, M.D.Cardiovascular Disease Physician1073571741
  2. Rachel Le, MDCardiovascular Disease Physician1184853244
  3. Jeremiah McKee, ARNPFamily Nurse Practitioner1457887937
  4. Stephen Roberts, DOCardiovascular Disease Physician1447811781
  5. Kavisha Singh, MDCardiovascular Disease Physician1780002485
  6. Courtney Smyth, DNPFamily Nurse Practitioner1841882321

Verify Darren Charles Hollenbaugh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD-28796
    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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58% more Medicare Part D claims than the average cardiovascular disease physician in 2024

4,870 Medicare Part D claims for 646 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Darren Hollenbaugh4,870
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate682 claims
  2. Eliquis420 claims
  3. Atorvastatin Calcium342 claims
  4. Losartan Potassium314 claims
  5. Furosemide243 claims
  6. Carvedilol240 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. Providence Health And Services WashingtonColville, WA

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

Darren Charles Hollenbaugh among 512 cardiovascular disease physician records in Washington

Darren Charles Hollenbaugh, MD, FACC is one of 512 cardiovascular disease physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 46% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1989 · median 2002 among the 351 with a school on file
  • Record last updated2026 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Washington

There are 512 cardiovascular disease physician records in Washington.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Guy Katz, MD, FACCSpokane Valley, WA 992161346265881
  2. Nancy Koster, M.D.Spokane Valley, WA 992161073571741
  3. Rachel Le, MDSpokane Valley, WA 992161184853244
  4. Stephen Roberts, DOSpokane Valley, WA 992161447811781
  5. Kavisha Singh, MDSpokane Valley, WA 992161780002485
  6. John Everett, MDSpokane, WA 992081336195759
  7. John Peterson, MD, FACCSpokane, WA 992081013931997
  8. Sean Spangler, MDSpokane, WA 992081982679619

Common questions

What is Darren Charles Hollenbaugh, MD, FACC's NPI number?

Darren Charles Hollenbaugh, MD, FACC's National Provider Identifier (NPI) is 1861425571, issued on Jul 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Darren Charles Hollenbaugh, MD, FACC located?

The NPPES record lists a practice address at 16528 E Desmet CT Ste B3200, Spokane Valley, WA, 99216. Phone: (509) 455-8820. Providers update this record themselves, so call before visiting.

How can I verify Darren Charles Hollenbaugh, MD, FACC's license?

NPPES lists Washington license number MD-28796, 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.

How much does Darren Charles Hollenbaugh, MD, FACC prescribe under Medicare Part D?

In 2024, Darren Charles Hollenbaugh, MD, FACC had 4,870 Medicare Part D claims for 646 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.