Cassandra Simonich, MD, PHD
Pediatric Infectious Diseases Physician · Seattle, WA
Cassandra Simonich, MD, PHD is a pediatric infectious diseases physician with a practice address in Seattle, Washington, and NPI 1508494329, issued on Mar 28, 2020. Check the license (Washington MD61655335, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Cassandra Simonich
- Credential
- MD, PHD
- Primary taxonomy
- Pediatric Infectious Diseases Physician 2080P0208X
- License number
- MD61655335 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4800 Sand Point Way NE, Seattle, WA 98105
- Phone
- (206) 987-2525
- Enumerated
- Mar 28, 2020
- Record last updated
- Mar 25, 2026
- Medicare enrollment
- Enrolled (PECOS I20260601001681); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest pediatric infectious diseases physician records → All 46 in Washington → Look up another NPI →
Also registered at 4800 Sand Point Way NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Evan Abrass, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1598237919
- Seja AbudiabPediatrics Physician1285166173
- Michele Acker, ARNPPediatric Nurse Practitioner1720019094
Verify Cassandra Simonich in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61655335Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Cassandra Simonich among 46 pediatric infectious diseases physician records in Washington
Cassandra Simonich, MD, PHD is one of 46 pediatric infectious diseases physician records with a practice address in Washington. 37% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2020, is newer than 93% of them.
- NPI issued2020 · 93% of these records are older, 2% newer
- In a Medicare fileNo · 37% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated2020 · median 2013 among the 11 with a school on file
- Record last updated2026 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0208X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Infectious Diseases Physician providers in Washington
There are 46 pediatric infectious diseases physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 46 in Washington → Every provider in Seattle → Pediatric Infectious Diseases Physician nationwide →
The 8 pediatric infectious diseases physician records with the nearest ZIP codes
- Theresa Barton, MDSeattle, WA 981051295760205
- Jane L BurnsSeattle, WA 981051891885786
- Janet EnglundSeattle, WA 981051679663561
- Lisa FrenkelSeattle, WA 981051184714073
- Soren Gantt, MDSeattle, WA 981051083661631
- Matthew Kronman, MDSeattle, WA 981051457463424
- Ann MelvinSeattle, WA 981051427148311
- Tamara PozosSeattle, WA 981051881775138
Common questions
What is Cassandra Simonich, MD, PHD's NPI number?
Cassandra Simonich, MD, PHD's National Provider Identifier (NPI) is 1508494329, issued on Mar 28, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Simonich, MD, PHD located?
The NPPES record lists a practice address at 4800 Sand Point Way NE, Seattle, WA, 98105. Phone: (206) 987-2525. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Simonich, MD, PHD's license?
NPPES lists Washington license number MD61655335, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.