Erika Christian Simshauser, CNP
Nurse Practitioner · Boston, MA
Erika Christian Simshauser, CNP is a nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1114642709, issued on Oct 6, 2022. Check the license (Massachusetts RN2299040, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erika Christian Simshauser
- Credential
- CNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- RN2299040 MA
Self-reported in NPPES; status is on the state search - Practice location
- 800 Washington St # 2111, Boston, MA 02111
- Phone
- (617) 636-5000
- Enumerated
- Oct 6, 2022
- Record last updated
- Oct 6, 2022
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →
Also registered at 800 Washington St # 2111
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sebastian BarrosStudent in an Organized Health Care Education/Training Program1215723945
Verify Erika Christian Simshauser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2299040Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average nurse practitioner in 2024
197 Medicare Part D claims for 57 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Letrozole51 claims
- Anastrozole35 claims
- Gabapentin15 claims
- Exemestane12 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.
Erika Christian Simshauser among 3,480 nurse practitioner records in Massachusetts
Erika Christian Simshauser, CNP 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 fileNo · 56% of these records are
- Record last updated2022 · 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).
961 nurse practitioner records list a practice address in Boston
They are 961 of the 41,865 NPPES records with a practice address in Boston, and 3,480 nurse practitioner records in Massachusetts.
All 3,480 in Massachusetts → Every provider in Boston → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Deborah Carr, N.P.Boston, MA 021111194705095
- Catherine Carroll, NPBoston, MA 021111235511031
- Kathleen Coleman, NPBoston, MA 021111265406847
- Elizabeth Cruz, NPBoston, MA 021111235480377
- Grace Da Cunha, NPBoston, MA 021111164850475
- Noreen Dolan, NP-CBoston, MA 021111255669503
- Cynthia Enright, NP-CBoston, MA 021111437367380
- Benjamin Hollingsworth, NPBoston, MA 021111972670222
Common questions
What is Erika Christian Simshauser, CNP's NPI number?
Erika Christian Simshauser, CNP's National Provider Identifier (NPI) is 1114642709, issued on Oct 6, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Erika Christian Simshauser, CNP located?
The NPPES record lists a practice address at 800 Washington St # 2111, Boston, MA, 02111. Phone: (617) 636-5000. Providers update this record themselves, so call before visiting.
How can I verify Erika Christian Simshauser, CNP's license?
NPPES lists Massachusetts license number RN2299040, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Erika Christian Simshauser, CNP prescribe under Medicare Part D?
In 2024, Erika Christian Simshauser, CNP had 197 Medicare Part D claims for 57 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.