Dr. Gregory Alan Sliman, MD
- Part D claims, 2024
- 21
- Industry payments
- $1,291
- Affiliated sites
- 1
- Medical group
- 1
- Insurance carriers
- 7
- Practice address
- 6003 23rd W Dr, Everett, WA 98203
- Practice phone
- Call (425) 402-8393
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Woodinville Pediatric Dentistry
Everett, Washington
Find Dr. Sliman's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gregory Alan Sliman is a pediatrician in Everett, Washington
Dr. Sliman practices at Woodinville Pediatric Dentistry in Everett, Washington.
Dr. Sliman's NPI, 1871678003, was assigned on October 26, 2006. Dr. Sliman graduated from The Johns Hopkins University School of Medicine in 1988. Dr. Sliman holds Washington license MD27922.
- NPI
- 1871678003NPI Registry (opens in a new tab)
- NPI enumeration date
- October 26, 2006
- NPI status
- Active
- Practice phone
- (425) 402-8393
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Gregory Alan Sliman practices at Woodinville Pediatric Dentistry in Everett, Washington
Dr. Sliman's primary practice is Woodinville Pediatric Dentistry, at 6003 23rd W Dr, Everett, WA 98203 in Snohomish County. The practice phone is (425) 402-8393.
- Woodinville Pediatric Dentistry6003 23rd W Dr, Everett, WA 98203 · Snohomish CountyPhone(425) 402-8393
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory Alan Sliman is affiliated with 2 sites of care and 1 medical group
Dr. Sliman's primary practice is Woodinville Pediatric Dentistry in Everett, Washington. Dmand AI also links Dr. Sliman to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory Alan Sliman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sliman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Woodinville Pediatric Dentistry | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory Alan Sliman is one of 1,346 pediatricians in Washington
Pediatrics is Dr. Sliman's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Sliman is board certified in pediatrics by the American Board of Pediatrics. Dr. Sliman is licensed in Washington.
Specialties and state licenses
- Pediatrics, WashingtonPrimary
Pediatricians near Dr. Sliman
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory Alan Sliman's patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Dr. Sliman's median patient age at 11, with 32% women.
Dr. Sliman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 11
Patient panel by sex, all payers
- Women32%
- Men68%
Source: Dmand AI Patient Panel Data
Dr. Gregory Alan Sliman wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Sliman wrote 21 Medicare Part D claims. 67% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $39 in total drug cost.
Dr. Sliman's Part D claims by kind of drug, 2024
- Generic14 claims67%
- Brand-name and other7 claims33%
Dr. Sliman's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Gregory Alan Sliman received $1,291 in industry payments from 2016 to 2020
CMS Open Payments shows 79 general payments to Dr. Sliman from 20 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $177.
General payments to Dr. Sliman by program year, 2016 to 2020
Companies that paid Dr. Sliman the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory Alan Sliman has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Sliman, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Sliman
- 2014
- Regional Top Doctor
- Undated
- AAP Fellow
Source: Dmand AI Professional Profile Data
Dr. Gregory Alan Sliman graduated from The Johns Hopkins University School of Medicine
Dr. Sliman graduated from The Johns Hopkins University School of Medicine in 1988. Dr. Sliman is a member of AAP.
- Medical school
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Gregory Alan Sliman accepts plans from 7 insurance carriers
Dr. Sliman is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Kaiser Permanente
Plan types Dr. Sliman accepts, by number of carriers
- Medicare6
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory Alan Sliman's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory Alan Sliman
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregory Alan Sliman's NPI number?
Dr. Gregory Alan Sliman's NPI number is 1871678003. It was assigned on October 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Alan Sliman?
Dr. Gregory Alan Sliman is a pediatrician in Everett, Washington. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Gregory Alan Sliman practice?
Dr. Sliman practices at 6003 23rd W Dr, Everett, WA 98203. Dr. Sliman's primary practice is Woodinville Pediatric Dentistry in Everett, Washington. Dmand AI also links Dr. Sliman to 1 group practice or clinic and 1 medical group.
What is Dr. Gregory Alan Sliman's office phone number?
The practice phone on file for Dr. Sliman is (425) 402-8393.
What is Dr. Gregory Alan Sliman's medical license number?
Dr. Sliman holds Washington license MD27922.
Is Dr. Gregory Alan Sliman board certified?
Yes. Dr. Sliman is board certified in pediatrics by the American Board of Pediatrics.
Where did Dr. Gregory Alan Sliman go to medical school?
Dr. Sliman graduated from The Johns Hopkins University School of Medicine in 1988.
What drugs does Dr. Gregory Alan Sliman prescribe most?
In 2024 Medicare Part D data, Dr. Sliman's most prescribed drugs by claims were Levothyroxine Sodium.
Has Dr. Gregory Alan Sliman received payments from drug or device companies?
CMS Open Payments shows $1,291 in general payments to Dr. Sliman from 20 companies from 2016 to 2020. The largest total came from Pfizer Inc.
How long has Dr. Gregory Alan Sliman been practicing?
Dr. Sliman graduated from medical school in 1988, 38 years ago.
What insurance does Dr. Gregory Alan Sliman accept?
Dr. Sliman is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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