Melissa S. Chinn, DO
Obstetrics & Gynecology Physician · Mount Vernon, WA
Melissa S. Chinn, DO is an obstetrics & gynecology physician with a practice address in Mount Vernon, Washington, and NPI 1336125343, issued on Dec 21, 2005. Check the license (Washington OP00001920, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Melissa S. Chinn
- Credential
- DO
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- OP00001920 WA
OP00001921 WA
Self-reported in NPPES; status is on the state search - Practice location
- 111 S 12TH St, Mount Vernon, WA 98274
- Phone
- (360) 678-0831
- Enumerated
- Dec 21, 2005
- Record last updated
- Apr 24, 2023
- Fax
- (360) 678-0583
- Medicaid ID
- 8426769 WA
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,038 in Washington → Look up another NPI →
Also registered at 111 S 12TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kiran Chaturvedi, M.D.Anatomic Pathology & Clinical Pathology Physician1245443480
- Morghan Milagrosa, CNM, ANPAdvanced Practice Midwife1306087960
- Sandra Miracle, PTPhysical Therapist1750430252
Verify Melissa S. Chinn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP00001920Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
289 Medicare Part D claims for 34 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium33 claims
- Progesterone24 claims
- Estradiol18 claims
- Baclofen15 claims
- Estradiol (Twice Weekly)13 claims
- Estradiol (Once Weekly)11 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.
Melissa S. Chinn among 1,038 obstetrics & gynecology physician records in Washington
Melissa S. Chinn, DO 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 56% of these records are
- Record last updated2023 · 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
- Kathryn Delbello, MDMount Vernon, WA 982741588220081
- Jan Delli-Bovi, MDMount Vernon, WA 982741457347585
- Trisha Halvorsen, MDMount Vernon, WA 982741245585959
- William Hinderstein, MDMount Vernon, WA 982741043207095
Common questions
What is Melissa S. Chinn, DO's NPI number?
Melissa S. Chinn, DO's National Provider Identifier (NPI) is 1336125343, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Melissa S. Chinn, DO located?
The NPPES record lists a practice address at 111 S 12TH St, Mount Vernon, WA, 98274. Phone: (360) 678-0831. Providers update this record themselves, so call before visiting.
How can I verify Melissa S. Chinn, DO's license?
NPPES lists Washington license number OP00001920, 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 Melissa S. Chinn, DO prescribe under Medicare Part D?
In 2024, Melissa S. Chinn, DO had 289 Medicare Part D claims for 34 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.