NPPES file of Aug 9, 2026

Stefan Mark Groetsch, MD

Family Medicine Physician · Silverdale, WA

Stefan Mark Groetsch, MD is a family medicine physician with a practice address in Silverdale, Washington, and NPI 1679543268, issued on Jan 25, 2006. Check the license 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
1679543268
Name
Stefan Mark Groetsch
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
MD071983L PA
Self-reported in NPPES; status is on the state search
Practice location
10452 Silverdale Way NW, Silverdale, WA 98383
Phone
(360) 307-7300
Enumerated
Jan 25, 2006
Record last updated
Apr 7, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191112000679); accepts Medicare assignment
Medical or professional school
Uniformed Services Uhs Fe Hebert School Of Med, 1998
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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Also registered at 10452 Silverdale Way NW

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

  1. Kavita Bansil, ODOptometrist1790836955
  2. Peter Barkett, M.D.Internal Medicine Physician1891086252
  3. Carrielyn Bays, P.A.Physician Assistant1699828376
  4. Joe Bennett, MDEmergency Medicine Physician1053769893
  5. Anne Blankenheim, PA-CMedical Physician Assistant1699087866
  6. Janet Boltwood, LICSWClinical Social Worker1306238431

Verify Stefan Mark Groetsch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical CommissionCheck 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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2% more Medicare Part D claims than the average family medicine physician in 2024

3,619 Medicare Part D claims for 398 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 176 claims were for opioids.

  1. Stefan Groetsch3,619
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium276 claims
  2. Lisinopril173 claims
  3. Levothyroxine Sodium146 claims
  4. Amlodipine Besylate134 claims
  5. Losartan Potassium127 claims
  6. Omeprazole122 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. Kaiser Foundation Health Plan OF WashingtonSilverdale, WA

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

Stefan Mark Groetsch among 5,534 family medicine physician records in Washington

Stefan Mark Groetsch, MD is one of 5,534 family medicine physician records with a practice address in Washington. 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 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 58% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1998 · median 2009 among the 3,294 with a school on file
  • Record last updated2021 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

42 family medicine physician records list a practice address in Silverdale

They are 42 of the 1,305 NPPES records with a practice address in Silverdale, and 5,534 family medicine physician records in Washington.

The 8 family medicine physician records with the nearest ZIP codes

  1. Arunas Banionis, D.O.Silverdale, WA 983831801871074
  2. Tiffin Clegg, MDSilverdale, WA 983831982695219
  3. David Congdon, MDSilverdale, WA 983831841271236
  4. Angela Droz, MDSilverdale, WA 983831841259785
  5. Guy Earle, MDSilverdale, WA 983831356329551
  6. Courtenay Havers, M.D.Silverdale, WA 983831619913100
  7. Ronda Luce, MDSilverdale, WA 983831609951243
  8. Roger Ludwig, D.O.Silverdale, WA 983831134158454

Common questions

What is Stefan Mark Groetsch, MD's NPI number?

Stefan Mark Groetsch, MD's National Provider Identifier (NPI) is 1679543268, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stefan Mark Groetsch, MD located?

The NPPES record lists a practice address at 10452 Silverdale Way NW, Silverdale, WA, 98383. Phone: (360) 307-7300. Providers update this record themselves, so call before visiting.

How can I verify Stefan Mark Groetsch, MD's license?

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 Stefan Mark Groetsch, MD prescribe under Medicare Part D?

In 2024, Stefan Mark Groetsch, MD had 3,619 Medicare Part D claims for 398 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.