Gregory William Mallek, M.D.
Obstetrics & Gynecology Physician · Mount Vernon, WA
Gregory William Mallek, M.D. is an obstetrics & gynecology physician with a practice address in Mount Vernon, Washington, and NPI 1003012303, issued on Jun 23, 2007. Check the license (Washington MD60902474, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Gregory William Mallek
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD60902474 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1400 E Kincaid St, Mount Vernon, WA 98274
- Phone
- (360) 428-2575
- Enumerated
- Jun 23, 2007
- Record last updated
- Oct 31, 2025
- Fax
- (360) 428-6471
- Medicare enrollment
- Enrolled (PECOS I20190730002318); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,038 in Washington → Look up another NPI →
Also registered at 1400 E Kincaid St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniela Abreu, DOObstetrics & Gynecology Physician1770169260
- Sankar Alagugurusamy, MDGastroenterology Physician1093970576
- Aleisha Allen, PA-CSurgical Physician Assistant1700520087
- Marshall Anderson, MDOccupational Medicine Physician1417942038
- George Ang, MDEndocrinology, Diabetes & Metabolism Physician1396737326
- Melissa Ashby, MDFamily Medicine Physician1245226646
Verify Gregory William Mallek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60902474Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
53 Medicare Part D claims for 15 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Premarin11 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.
Bills Medicare through 2 group practices
- Capital Medical Center Specialty Physicians LLCOlympia, WA
- Public Hospital Dist NO 1 SkagitMount Vernon, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory William Mallek among 1,038 obstetrics & gynecology physician records in Washington
Gregory William Mallek, M.D. is one of 1,038 obstetrics & gynecology physician records with a practice address in Washington. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 42% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2006 · median 2007 among the 582 with a school on file
- Record last updated2025 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 obstetrics & gynecology physician records list a practice address in Mount Vernon
They are 18 of the 1,500 NPPES records with a practice address in Mount Vernon, and 1,038 obstetrics & gynecology physician records in Washington.
All 1,038 in Washington → Every provider in Mount Vernon → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Daniela Abreu, DOMount Vernon, WA 982741770169260
- Nichole Baruth, MDMount Vernon, WA 982741558897694
- Daniel Bynum, M.D.Mount Vernon, WA 982741871567792
- Maria Cayabyab, D.O.Mount Vernon, WA 982741508165804
- Melissa Chinn, DOMount Vernon, WA 982741336125343
- Kathryn Delbello, MDMount Vernon, WA 982741588220081
- Jan Delli-Bovi, MDMount Vernon, WA 982741457347585
- Trisha Halvorsen, MDMount Vernon, WA 982741245585959
Common questions
What is Gregory William Mallek, M.D.'s NPI number?
Gregory William Mallek, M.D.'s National Provider Identifier (NPI) is 1003012303, issued on Jun 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gregory William Mallek, M.D. located?
The NPPES record lists a practice address at 1400 E Kincaid St, Mount Vernon, WA, 98274. Phone: (360) 428-2575. Providers update this record themselves, so call before visiting.
How can I verify Gregory William Mallek, M.D.'s license?
NPPES lists Washington license number MD60902474, 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 William Mallek, M.D. prescribe under Medicare Part D?
In 2024, Gregory William Mallek, M.D. had 53 Medicare Part D claims for 15 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.