Gary Gretch, MD
NPI 1053392597 · Internal Medicine Physician · Bremerton, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Gretch, MD is a Internal Medicine Physician provider in Bremerton, WA (NPI 1053392597).
Provider details
- NPI number
- 1053392597
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00028724 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,231 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,503 | $127 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 672 | $8 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 667 | $129 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 228 | $48 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 225 | $89 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 143 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 804 | 240 |
| Amlodipine Besylate | 553 | 152 |
| Lisinopril | 492 | 139 |
| Metformin Hcl | 370 | 105 |
| Levothyroxine Sodium | 332 | 85 |
| Losartan Potassium | 319 | 99 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-10
- Last updated
- 2026-05-28
- Certified
- 2026-05-28
Frequently asked questions
- What is Gary Gretch's NPI number?
- Gary Gretch's National Provider Identifier (NPI) is 1053392597, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Gretch's specialty?
- Gary Gretch is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Gretch located?
- Gary Gretch's practice location on file with NPPES is 2601 Cherry Ave Ste 215, Bremerton, WA 98310-4203.
- What is Gary Gretch's phone number?
- The practice phone number listed in the NPPES registry for Gary Gretch is (360) 377-3923.
- Does Gary Gretch accept Medicare?
- Gary Gretch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Gretch's NPI active?
- Yes — Gary Gretch's NPI (1053392597) is active in the NPPES registry as of the last update on 2026-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.