Kristina Ernst, M.D.
Hospitalist Physician · Brooklyn, NY
Kristina Ernst, M.D. is a hospitalist physician with a practice address in Brooklyn, New York, and NPI 1285096438, issued on Mar 27, 2016. Check the license (New York 300192, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Kristina Ernst
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 300192 NY
Self-reported in NPPES; status is on the state search - Practice location
- 450 Clarkson Avenue, Box 1262, Brooklyn, NY 11203
- Phone
- (718) 270-8867
- Enumerated
- Mar 27, 2016
- Record last updated
- Aug 2, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190812001483); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 2,067 in New York → Look up another NPI →
Also registered at 450 Clarkson Avenue, Box 1262
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kristina Ernst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 300192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average hospitalist physician in 2024
21 Medicare Part D claims for 11 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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: $129.96
5 payments; by number, the most common kind was food and beverage; the largest payer was Fisher & Paykel Healthcare Inc. The 7,324 providers of this specialty with any payment received $494.84 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
- Maimonides Medical Center Maimonides Primary Care FppBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kristina Ernst among 2,067 hospitalist physician records in New York
Kristina Ernst, M.D. is one of 2,067 hospitalist physician records with a practice address in New York. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 53% of them.
- NPI issued2016 · 53% of these records are older, 42% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2016 · median 2013 among the 1,716 with a school on file
- Record last updated2019 · 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in New York
There are 2,067 hospitalist physician records in New York.
All 2,067 in New York → Every provider in Brooklyn → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Bonnie Brown, D.O.Brooklyn, NY 112031346504453
- Bernard Brown, MDBrooklyn, NY 112031992385496
- Keith Bui, M.D.Brooklyn, NY 112031922460286
- Helen ChaBrooklyn, NY 112031760913461
- Udit DeyBrooklyn, NY 112031558004648
- Sabin GurungBrooklyn, NY 112031104573534
- Nisha Horton, MDBrooklyn, NY 112031922749738
- Filberto Kelly, MDBrooklyn, NY 112031245484146
Common questions
What is Kristina Ernst, M.D.'s NPI number?
Kristina Ernst, M.D.'s National Provider Identifier (NPI) is 1285096438, issued on Mar 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Kristina Ernst, M.D. located?
The NPPES record lists a practice address at 450 Clarkson Avenue, Box 1262, Brooklyn, NY, 11203. Phone: (718) 270-8867. Providers update this record themselves, so call before visiting.
How can I verify Kristina Ernst, M.D.'s license?
NPPES lists New York license number 300192, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kristina Ernst, M.D. prescribe under Medicare Part D?
In 2024, Kristina Ernst, M.D. had 21 Medicare Part D claims for 11 beneficiaries; the average among hospitalist physician prescribers was 521. 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.