NPPES file of Aug 9, 2026

Christian William Ernst, NP

Nurse Practitioner · Dorchester, MA

Christian William Ernst, NP is a nurse practitioner with a practice address in Dorchester, Massachusetts, and NPI 1700502747, issued on Oct 12, 2022. Check the license (Massachusetts RN2349732, as entered in NPPES) with the Massachusetts board that licenses this profession; 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
1700502747
Name
Christian William Ernst
Credential
NP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
RN2349732 MA
Self-reported in NPPES; status is on the state search
Practice location
1353 Dorchester Ave, Dorchester, MA 02122
Phone
(617) 288-3230
Enumerated
Oct 12, 2022
Record last updated
Feb 22, 2023
Medicare enrollment
Enrolled (PECOS I20230410000659); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1353 Dorchester Ave

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

  1. Dominique Antoine, NPFamily Nurse Practitioner1699493973
  2. Amy Baron, NPFamily Nurse Practitioner1366968042
  3. Aisling Bastible, MDSpecialist1437118783
  4. Marie Bernard, N.P.School Nurse Practitioner1619921715
  5. Kyle Bertram, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1356842934
  6. Kathleen Black Tenerowicz, NPFamily Nurse Practitioner1093143968

Verify Christian William Ernst in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2349732
    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
Find the Massachusetts 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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9% fewer Medicare Part D claims than the average nurse practitioner in 2024

1,011 Medicare Part D claims for 126 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims. 25 claims were for opioids.

  1. Christian Ernst1,011
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium81 claims
  2. Jardiance79 claims
  3. Trulicity38 claims
  4. Metformin Hcl32 claims
  5. Diclofenac Sodium26 claims
  6. Lisinopril26 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.

Bills Medicare through one group practice

  1. Dothouse Health Inc.Dorchester, MA

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

Christian William Ernst among 3,480 nurse practitioner records in Massachusetts

Christian William Ernst, NP is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 80% of them.

  • NPI issued2022 · 80% of these records are older, 14% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2022 · median 2017 among the 1,963 with a school on file
  • Record last updated2023 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

23 nurse practitioner records list a practice address in Dorchester

They are 23 of the 1,663 NPPES records with a practice address in Dorchester, and 3,480 nurse practitioner records in Massachusetts.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Edward Branson, NPDorchester, MA 021221215912001
  2. Charmaine Desir, NPDorchester, MA 021221992780720
  3. Cristy Galvin, CNPDorchester, MA 021221356975981
  4. Megan Jordan, NPDorchester, MA 021221619063674
  5. Sarah Lay, NPDorchester, MA 021221528184835
  6. Christine Lens, NPDorchester, MA 021221164561643
  7. Sonia Lipson, NPDorchester, MA 021221396730800
  8. Jocelyn Loftus, NPDorchester, MA 021221013992858

Common questions

What is Christian William Ernst, NP's NPI number?

Christian William Ernst, NP's National Provider Identifier (NPI) is 1700502747, issued on Oct 12, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Christian William Ernst, NP located?

The NPPES record lists a practice address at 1353 Dorchester Ave, Dorchester, MA, 02122. Phone: (617) 288-3230. Providers update this record themselves, so call before visiting.

How can I verify Christian William Ernst, NP's license?

NPPES lists Massachusetts license number RN2349732, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Christian William Ernst, NP prescribe under Medicare Part D?

In 2024, Christian William Ernst, NP had 1,011 Medicare Part D claims for 126 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.