Gregory Alan Sliman, MD
Pediatrics Physician · Woodinville, WA
Gregory Alan Sliman, MD is a pediatrics physician with a practice address in Woodinville, Washington, and NPI 1871678003, issued on Oct 26, 2006. Check the license (Washington MD27922, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Gregory Alan Sliman
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- MD27922 WA
Self-reported in NPPES; status is on the state search - Practice location
- 17000 140TH Ave NE, Woodinville, WA 98072
- Phone
- (425) 483-5437
- Enumerated
- Oct 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (425) 488-4919
- Medicaid ID
- 7160179 WA
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,753 in Washington → Look up another NPI →
Also registered at 17000 140TH Ave NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Whitney Anderson, MDPediatrics Physician1568547735
- Emlyn Baker, ARNPRegistered Nurse1801971064
- David Baus, PTPhysical Therapist1023133840
- Marie Bilger, MDPediatrics Physician1134204399
- Barbara Cummings, MDPediatrics Physician1740365998
- Grace Dy, MDEmergency Medicine Physician1295792109
Verify Gregory Alan Sliman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD27922Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average pediatrics physician in 2024
21 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium11 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.
Gregory Alan Sliman among 1,753 pediatrics physician records in Washington
Gregory Alan Sliman, MD is one of 1,753 pediatrics physician records with a practice address in Washington. 14% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 59% newer
- In a Medicare fileYes · 14% of these records are
- In the CMS Doctors and Clinicians fileNo · 7% of these records are
- Record last updated2007 · 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 208000000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 pediatrics physician records list a practice address in Woodinville
They are 14 of the 548 NPPES records with a practice address in Woodinville, and 1,753 pediatrics physician records in Washington.
All 1,753 in Washington → Every provider in Woodinville → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Whitney Anderson, MDWoodinville, WA 980721568547735
- Marie Bilger, MDWoodinville, WA 980721134204399
- Taryn Chlebowski, M.D.Woodinville, WA 980721942372040
- Barbara Cummings, MDWoodinville, WA 980721740365998
- Samantha Haley, MDWoodinville, WA 980721801328117
- Christopher Johnson, MDWoodinville, WA 980721326123571
- David Koh, MDWoodinville, WA 980721275618415
- Jill Miller, MDWoodinville, WA 980721699850834
Common questions
What is Gregory Alan Sliman, MD's NPI number?
Gregory Alan Sliman, MD's National Provider Identifier (NPI) is 1871678003, issued on Oct 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Alan Sliman, MD located?
The NPPES record lists a practice address at 17000 140TH Ave NE, Woodinville, WA, 98072. Phone: (425) 483-5437. Providers update this record themselves, so call before visiting.
How can I verify Gregory Alan Sliman, MD's license?
NPPES lists Washington license number MD27922, 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.
How much does Gregory Alan Sliman, MD prescribe under Medicare Part D?
In 2024, Gregory Alan Sliman, MD had 21 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.