Dennis Warren Gaither, M.D.
Psychiatry Physician · Mount Vernon, WA
Dennis Warren Gaither, M.D. is a psychiatry physician with a practice address in Mount Vernon, Washington, and NPI 1730123084, issued on Jun 16, 2006. Check the license (Washington MD00019927, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Dennis Warren Gaither
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD00019927 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 S 2ND St, Mount Vernon, WA 98273
- Phone
- (360) 419-3500
- Enumerated
- Jun 16, 2006
- Record last updated
- Jul 13, 2026
- Medicaid ID
- 8190027 WA
- Medicare enrollment
- Enrolled (PECOS I20050317001054); may accept Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1979
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Also registered at 1100 S 2ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kayla AllenMental Health Counselor1154720233
- Scott Amundsen, CDPAddiction (Substance Use Disorder) Counselor1083991624
- Carol Austin, MFTMarriage & Family Therapist1902901473
- Raymond AveryMental Health Counselor1750492575
- Briana Bankston, LMHAMental Health Counselor1568915221
Verify Dennis Warren Gaither in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00019927Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average psychiatry physician in 2024
3,393 Medicare Part D claims for 93 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Clozapine421 claims
- Risperidone216 claims
- Lamotrigine209 claims
- Buspirone Hcl178 claims
- Ziprasidone Hcl175 claims
- Olanzapine170 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.
Industry payments in 2024: $920.71
27 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Lake Whatcom Residential And Treatment CenterBellingham, WA
- Shifa Health PLLCMount Vernon, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dennis Warren Gaither among 1,195 psychiatry physician records in Washington
Dennis Warren Gaither, M.D. is one of 1,195 psychiatry physician records with a practice address in Washington. 61% 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, 57% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1979 · median 2007 among the 462 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Washington
There are 1,195 psychiatry physician records in Washington.
All 1,195 in Washington → Every provider in Mount Vernon → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Mark Backlund, MDMount Vernon, WA 982731306883152
- Jeffrey Berger, MDMount Vernon, WA 982731588601355
- Rozina Lakhani, MDMount Vernon, WA 982731174682371
- Rajni Aulakh, M.D.Monroe, WA 982721396034567
- Vance Sherman, MDMount Vernon, WA 982741487883187
- Nathan Tolley, DOMount Vernon, WA 982741235666389
- Brian Waiblinger, MDMount Vernon, WA 982741750350443
- Susan Clark, MDMukilteo, WA 982751598892085
Common questions
What is Dennis Warren Gaither, M.D.'s NPI number?
Dennis Warren Gaither, M.D.'s National Provider Identifier (NPI) is 1730123084, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dennis Warren Gaither, M.D. located?
The NPPES record lists a practice address at 1100 S 2ND St, Mount Vernon, WA, 98273. Phone: (360) 419-3500. Providers update this record themselves, so call before visiting.
How can I verify Dennis Warren Gaither, M.D.'s license?
NPPES lists Washington license number MD00019927, 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 Dennis Warren Gaither, M.D. prescribe under Medicare Part D?
In 2024, Dennis Warren Gaither, M.D. had 3,393 Medicare Part D claims for 93 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.