Chad A. Mongrain, DO
Family Medicine Physician · Davenport, WA
Chad A. Mongrain, DO is a family medicine physician with a practice address in Davenport, Washington, and NPI 1720028244, issued on Jun 7, 2006. Check the license (Washington OP00002086, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Chad A. Mongrain
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OP00002086 WA
Self-reported in NPPES; status is on the state search - Practice location
- 10 Nicholls St, Davenport, WA 99122
- Phone
- (509) 725-7501
- Enumerated
- Jun 7, 2006
- Record last updated
- Jun 16, 2026
- Fax
- (509) 725-7504
- Medicaid IDs
- 1017260 WA
8452310 WA - Medicare enrollment
- Enrolled (PECOS I20060623000244); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2003
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 10 Nicholls St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Crystal Carter, RNEmergency Registered Nurse1174480107
- Po-Lun Chou, MDFamily Medicine Physician1225617780
- James Dunlap, M.D.Orthopaedic Surgery Physician1740256759
- Amy Hiestand, NPNurse Practitioner1124140116
- Mary Jeffrey, PHYSICAL THERAPISTPhysical Therapist1699109512
- Karen Keith, LCSWClinical Social Worker1992215388
Verify Chad A. Mongrain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP00002086Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% more Medicare Part D claims than the average family medicine physician in 2024
5,025 Medicare Part D claims for 334 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 276 claims were for opioids.
Most prescribed
- Atorvastatin Calcium273 claims
- Amlodipine Besylate222 claims
- Lisinopril202 claims
- Levothyroxine Sodium196 claims
- Losartan Potassium170 claims
- Hydrocodone-Acetaminophen169 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: $207.24
11 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 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 one group practice
- Lincoln County Hospital District 3Davenport, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chad A. Mongrain among 5,534 family medicine physician records in Washington
Chad A. Mongrain, DO is one of 5,534 family medicine physician records with a practice address in Washington. 73% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2003 · median 2009 among the 3,294 with a school on file
- Record last updated2026 · 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 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 family medicine physician records list a practice address in Davenport
They are 6 of the 65 NPPES records with a practice address in Davenport, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Davenport → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Po-Lun Chou, MDDavenport, WA 991221225617780
- Rolf Panke, DODavenport, WA 991221396782272
- Frederick Reed, M.D.Davenport, WA 991221467411157
- Benjamin Wainblat, MDDavenport, WA 991221205491164
- Donella Young, MDDavenport, WA 991221073554119
- Karen Schaaf, M.D.Curlew, WA 991181700858131
- Maureen BeardsleeColville, WA 991141801232301
- Kristin Comstock, MDColville, WA 991141528445368
Common questions
What is Chad A. Mongrain, DO's NPI number?
Chad A. Mongrain, DO's National Provider Identifier (NPI) is 1720028244, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chad A. Mongrain, DO located?
The NPPES record lists a practice address at 10 Nicholls St, Davenport, WA, 99122. Phone: (509) 725-7501. Providers update this record themselves, so call before visiting.
How can I verify Chad A. Mongrain, DO's license?
NPPES lists Washington license number OP00002086, 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 Chad A. Mongrain, DO prescribe under Medicare Part D?
In 2024, Chad A. Mongrain, DO had 5,025 Medicare Part D claims for 334 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.