Marissa Anderson-Chernishof, M.D., M.S.
NPI 1235549957 · Internal Medicine Physician · Silverdale, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Anderson-Chernishof, M.D., M.S. is a Internal Medicine Physician provider in Silverdale, WA (NPI 1235549957).
Provider details
- NPI number
- 1235549957
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.S.
- Sex
- Female
- Sole proprietor
- No
- License
- MD61188611 (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
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
195 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) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 136 | $169 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 32 | $73 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 27 | $127 |
Typical Medicare-allowed amounts for these services range $73–$169 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 939 Caroline StPort Angeles, WA 98362-3909Phone: (360) 565-9237
Registry dates
- Enumerated
- 2014-05-02
- Last updated
- 2024-05-12
- Certified
- 2024-05-12
Frequently asked questions
- What is Marissa Anderson-Chernishof's NPI number?
- Marissa Anderson-Chernishof's National Provider Identifier (NPI) is 1235549957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Anderson-Chernishof's specialty?
- Marissa Anderson-Chernishof is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marissa Anderson-Chernishof located?
- Marissa Anderson-Chernishof's practice location on file with NPPES is 1800 Nw Myhre Rd, Silverdale, WA 98383-7663.
- What is Marissa Anderson-Chernishof's phone number?
- The practice phone number listed in the NPPES registry for Marissa Anderson-Chernishof is (360) 744-8800.
- Does Marissa Anderson-Chernishof accept Medicare?
- Marissa Anderson-Chernishof is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Anderson-Chernishof's NPI active?
- Yes — Marissa Anderson-Chernishof's NPI (1235549957) is active in the NPPES registry as of the last update on 2024-05-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.