Jonathan Zarley, M.D.
NPI 1659586832 · Internal Medicine Physician · Sitka, AK
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Zarley, M.D. is a Internal Medicine Physician provider in Sitka, AK (NPI 1659586832).
Provider details
- NPI number
- 1659586832
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 3173 (AK)
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
19 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
219 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) |
|---|---|---|
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Supervision By Physician93016 | 49 | $20 |
| Exercise Or Drug-Induced Heart Stress Test With Electrocardiogram (ecg) With Review By Physician93018 | 49 | $13 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 44 | $171 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 24 | $117 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 15 | $68 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-11
- Last updated
- 2007-11-19
Frequently asked questions
- What is Jonathan Zarley's NPI number?
- Jonathan Zarley's National Provider Identifier (NPI) is 1659586832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Zarley's specialty?
- Jonathan Zarley is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Zarley located?
- Jonathan Zarley's practice location on file with NPPES is 222 Tongass Dr, Sitka, AK 99835-9416.
- What is Jonathan Zarley's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Zarley is (907) 966-2411.
- Does Jonathan Zarley accept Medicare?
- Jonathan Zarley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Zarley's NPI active?
- Yes — Jonathan Zarley's NPI (1659586832) is active in the NPPES registry as of the last update on 2007-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.