Mark Y. Chu, M.D.
Family Medicine Physician · Ogallala, NE
Mark Y. Chu, M.D. is a family medicine physician with a practice address in Ogallala, Nebraska, and NPI 1528036423, issued on Mar 8, 2006. Check the license (Nebraska 21559, as entered in NPPES) on the Nebraska Board of Medicine and Surgery; the Medicare figures below come from public CMS files.
- Name
- Mark Y. Chu
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 21559 NE
Self-reported in NPPES; status is on the state search - Practice location
- 333 East 2ND Street, Ogallala, NE 69153
- Phone
- (308) 284-9838
- Enumerated
- Mar 8, 2006
- Record last updated
- Sep 8, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (308) 284-4120
- Medicaid ID
- 470767637-13 NE
- Medicare enrollment
- Enrolled (PECOS I20070309000517); accepts Medicare assignment
- Medical or professional school
- University Of Nebraska College Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,287 in Nebraska → Look up another NPI →
Verify Mark Y. Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNebraska Board of Medicine and Surgery
Search for license 21559Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average family medicine physician in 2024
201 Medicare Part D claims for 128 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Levothyroxine Sodium15 claims
- Azithromycin14 claims
- Hydrocodone-Acetaminophen14 claims
- Lisinopril14 claims
- Methylprednisolone14 claims
- Cyclobenzaprine Hcl13 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.
One hospital affiliation
- Box Butte General HospitalAlliance, NE · Critical Access Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mark Y. Chu among 1,287 family medicine physician records in Nebraska
Mark Y. Chu, M.D. is one of 1,287 family medicine physician records with a practice address in Nebraska. 77% 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, 52% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1992 · median 2006 among the 789 with a school on file
- Record last updated2008 · 61% 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 Nebraska practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 family medicine physician records list a practice address in Ogallala
They are 5 of the 123 NPPES records with a practice address in Ogallala, and 1,287 family medicine physician records in Nebraska.
All 1,287 in Nebraska → Every provider in Ogallala → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Gabriel Godina, MDOgallala, NE 691531801942412
- Kurt Johnson, M.D.Ogallala, NE 691531760442644
- Bart Kolste, M.D.Ogallala, NE 691531922076074
- Julia Trevino-Emerson, MDOgallala, NE 691531083611727
- Steve Boyer, M.D.Mullen, NE 691521730104886
- Trevor Bush, MDKimball, NE 691451942380431
- Rebecca Allard, MDSidney, NE 691621821064635
- Emily Crockett, M.D.Sidney, NE 691621376576827
Common questions
What is Mark Y. Chu, M.D.'s NPI number?
Mark Y. Chu, M.D.'s National Provider Identifier (NPI) is 1528036423, issued on Mar 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Y. Chu, M.D. located?
The NPPES record lists a practice address at 333 East 2ND Street, Ogallala, NE, 69153. Phone: (308) 284-9838. Providers update this record themselves, so call before visiting.
How can I verify Mark Y. Chu, M.D.'s license?
NPPES lists Nebraska license number 21559, as entered by the provider. Search the Nebraska Board of Medicine and Surgery at https://www.nebraska.gov/LISSearch/search.cgi. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Y. Chu, M.D. prescribe under Medicare Part D?
In 2024, Mark Y. Chu, M.D. had 201 Medicare Part D claims for 128 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.