NPPES file of Aug 9, 2026

May-Lynn Chu, D.O

Family Medicine Physician · Gresham, OR

May-Lynn Chu, D.O is a family medicine physician with a practice address in Gresham, Oregon, and NPI 1780002626, issued on Mar 28, 2014. Check the license (Oregon DO182259, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780002626
Name
May-Lynn Chu
Credential
D.O
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
DO182259 OR
008933 AZ
CDR.0000964 CO
87400 GA
DO-05711 IA
and 9 more
Self-reported in NPPES; status is on the state search
Practice location
831 NW Council Dr Ste 101, Gresham, OR 97030
Phone
(503) 665-8176
Enumerated
Mar 28, 2014
Record last updated
Sep 21, 2022
Fax
(503) 665-8178
Medicare enrollment
Enrolled (PECOS I20251223002240); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 831 NW Council Dr Ste 101

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kaysey Crump, LCSWClinical Social Worker1376990770
  2. Stephanie Gallian, LCSWClinical Social Worker1770833311
  3. Yale Liang, MDFamily Medicine Physician1982664637
  4. Brittney Mensen, DOInternal Medicine Physician1073951208

Verify May-Lynn Chu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license DO182259
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average family medicine physician in 2024

99 Medicare Part D claims for 42 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. May-Lynn Chu99
  2. Specialty average3,544

Most prescribed

  1. Norethindrone27 claims
  2. Norgestimate-Ethinyl Estradiol14 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.

May-Lynn Chu among 2,847 family medicine physician records in Oregon

May-Lynn Chu, D.O is one of 2,847 family medicine physician records with a practice address in Oregon. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 73% of them.

  • NPI issued2014 · 73% of these records are older, 24% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2014 · median 2009 among the 1,671 with a school on file
  • Record last updated2022 · 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

29 family medicine physician records list a practice address in Gresham

They are 29 of the 1,934 NPPES records with a practice address in Gresham, and 2,847 family medicine physician records in Oregon.

The 8 family medicine physician records with the nearest ZIP codes

  1. Gordon Canzler, D.O.Gresham, OR 970301114913183
  2. Kevin Carpenter, MDGresham, OR 970301578509980
  3. James Chong, DOGresham, OR 970301821245788
  4. Murlan Grise, DOGresham, OR 970301811951148
  5. Robert Henriques, MDGresham, OR 970301952348096
  6. Toni Hero, D.O.Gresham, OR 970301851387849
  7. Jon Hobson, MDGresham, OR 970301700824505
  8. Katherine Hogan, M.D.Gresham, OR 970301770786220

Common questions

What is May-Lynn Chu, D.O's NPI number?

May-Lynn Chu, D.O's National Provider Identifier (NPI) is 1780002626, issued on Mar 28, 2014. An NPI identifies a provider in billing; it is not a license.

Where is May-Lynn Chu, D.O located?

The NPPES record lists a practice address at 831 NW Council Dr Ste 101, Gresham, OR, 97030. Phone: (503) 665-8176. Providers update this record themselves, so call before visiting.

How can I verify May-Lynn Chu, D.O's license?

NPPES lists Oregon license number DO182259, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does May-Lynn Chu, D.O prescribe under Medicare Part D?

In 2024, May-Lynn Chu, D.O had 99 Medicare Part D claims for 42 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.