Hannah Joy Mastbergen, M.D.
Hospitalist Physician · Lexington, KY
Hannah Joy Mastbergen, M.D. is a hospitalist physician with a practice address in Lexington, Kentucky, and NPI 1427316207, issued on Apr 30, 2012. Check the license (Kentucky 49319, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Hannah Joy Mastbergen
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 49319 KY
Self-reported in NPPES; status is on the state search - Practice location
- UK Division OF Hospital Medicine, Lexington, KY 40536
- Phone
- (859) 323-6047
- Enumerated
- Apr 30, 2012
- Record last updated
- Jul 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (859) 257-3873
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 302 in Kentucky → Look up another NPI →
Also registered at UK Division OF Hospital Medicine
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ihab Almagdub, MDHospitalist Physician1801050984
- Taha Ayach, MDNephrology Physician1700016722
- Paula Bailey, MDHospitalist Physician1144310848
- Siddharth Bale, M.DHospitalist Physician1508144478
- Christopher Callihan, PA-CMedical Physician Assistant1235167040
- Celia Castellanos, M. D.Hospitalist Physician1003129917
Verify Hannah Joy Mastbergen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 49319Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Hannah Joy Mastbergen among 302 hospitalist physician records in Kentucky
Hannah Joy Mastbergen, M.D. is one of 302 hospitalist physician records with a practice address in Kentucky. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 44% of them.
- NPI issued2012 · 44% of these records are older, 53% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileNo · 82% of these records are
- Record last updated2016 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Kentucky
There are 302 hospitalist physician records in Kentucky.
All 302 in Kentucky → Every provider in Lexington → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Mukta Awasthi, MDLexington, KY 405361851486278
- Paula Bailey, MDLexington, KY 405361144310848
- Tariq Chaudry, MDLexington, KY 405361639256571
- Kristy Deep, MDLexington, KY 405361336150382
- William Foley, MDLexington, KY 405361679574875
- Charles Jones, MDLexington, KY 405361912981150
- Clifford Kaye, MDLexington, KY 405361780622852
- Jaime Kirtley, M.D.Lexington, KY 405361255470597
Common questions
What is Hannah Joy Mastbergen, M.D.'s NPI number?
Hannah Joy Mastbergen, M.D.'s National Provider Identifier (NPI) is 1427316207, issued on Apr 30, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Hannah Joy Mastbergen, M.D. located?
The NPPES record lists a practice address at UK Division OF Hospital Medicine, Lexington, KY, 40536. Phone: (859) 323-6047. Providers update this record themselves, so call before visiting.
How can I verify Hannah Joy Mastbergen, M.D.'s license?
NPPES lists Kentucky license number 49319, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Hannah Joy Mastbergen, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.