NPPES file of Aug 9, 2026

Hanh Katelyn Nguyen, D.O.

Hospitalist Physician · Oroville, CA

Hanh Katelyn Nguyen, D.O. is a hospitalist physician with a practice address in Oroville, California, and NPI 1780946376, issued on Jun 11, 2012. Check the license (California 20A14130, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780946376
Name
Hanh Katelyn Nguyen
Credential
D.O.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
20A14130 CA
Self-reported in NPPES; status is on the state search
Practice location
2767 Olive Hwy, Oroville, CA 95966
Phone
(530) 533-8500
Enumerated
Jun 11, 2012
Record last updated
Apr 1, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(530) 538-3117
Medicare enrollment
Enrolled (PECOS I20151016001590); accepts 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 2767 Olive Hwy

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

  1. Robert Abbott, DOInternal Medicine Physician1477015329
  2. Samuel Acebo, MSN, CRNACertified Registered Nurse Anesthetist1083131445
  3. Natashya Adams, FNP-CFamily Nurse Practitioner1063979110
  4. Yesong AhnStudent in an Organized Health Care Education/Training Program1881532810
  5. Vanessa Akines, FNPNurse Practitioner1790417434
  6. Phillip Anderson, MDStudent in an Organized Health Care Education/Training Program1811835572

Verify Hanh Katelyn Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A14130
    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 California 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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29% fewer Medicare Part D claims than the average hospitalist physician in 2024

371 Medicare Part D claims for 156 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 25 claims were for opioids.

  1. Hanh Nguyen371
  2. Specialty average521

Most prescribed

  1. Metformin Hcl20 claims
  2. Furosemide17 claims
  3. Ibuprofen17 claims
  4. Atorvastatin Calcium16 claims
  5. Potassium Chloride15 claims
  6. Oxycodone-Acetaminophen13 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 73.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score36.9
  2. Costout of 100 · 30%57.8
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Orohealth Corporation A Non Profit Healthcare SystemOroville, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

Other hospitalist physician records in California

  1. Zina Abbas, M.D.Chula Vista, CA1962799189
  2. Abdul Abdali, M.D.French Camp, CA1104319771
  3. Michael Abdel-Malek, MDDublin, CA1952388852
  4. Amr Abdelaty, MDWoodland, CA1962996348
  5. Anwar Abdelhadi, M.D.Orange, CA1093784191
  6. Farid Abdelmalak, M.D.Santa Monica, CA1912392937
  7. Elijah AbdelmeseehLong Beach, CA1346827631
  8. Homayoun Abdollahzadeh, M.D.Rancho Mirage, CA1871802454
  9. Wajidah Abdul-KhabirDuarte, CA1215323522
  10. Rizwana Abdullah, MDRoseville, CA1194899401

Common questions

What is Hanh Katelyn Nguyen, D.O.'s NPI number?

Hanh Katelyn Nguyen, D.O.'s National Provider Identifier (NPI) is 1780946376, issued on Jun 11, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Hanh Katelyn Nguyen, D.O. located?

The NPPES record lists a practice address at 2767 Olive Hwy, Oroville, CA, 95966. Phone: (530) 533-8500. Providers update this record themselves, so call before visiting.

How can I verify Hanh Katelyn Nguyen, D.O.'s license?

NPPES lists California license number 20A14130, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Hanh Katelyn Nguyen, D.O. prescribe under Medicare Part D?

In 2024, Hanh Katelyn Nguyen, D.O. had 371 Medicare Part D claims for 156 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

What is Hanh Katelyn Nguyen, D.O.'s MIPS final score?

The 2023 MIPS final score is 73.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.