NPPES file of Aug 9, 2026

Elizabeth Lager Hammerstrand, NP

Adult Health Nurse Practitioner · Boston, MA

Elizabeth Lager Hammerstrand, NP is an adult health nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1295762177, issued on Jun 27, 2006. Check the license (Massachusetts 258441, 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
1295762177
Name
Elizabeth Lager Hammerstrand
Credential
NP
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
258441 MA
Self-reported in NPPES; status is on the state search
Practice location
44 Binney St, Boston, MA 02115
Phone
(617) 632-6309
Enumerated
Jun 27, 2006
Record last updated
Aug 22, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(617) 632-4448
Medicare enrollment
Enrolled (PECOS I20141104001607); 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 44 Binney St

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

  1. Karim Abou-Nassar, MDHematology & Oncology Physician1366770745
  2. Janet Abrahm, MDMedical Oncology Physician1427024264
  3. Thomas Abrams, M.D.Medical Oncology Physician1184693947
  4. Christine Agius, RN, MSN, NP-C, RNCAdult Health Nurse Practitioner1932114790
  5. Laura Aguilar, MD PHDPediatric Hematology & Oncology Physician1295786598
  6. Zi Yazan Alabed, M.D., PH.D.Student in an Organized Health Care Education/Training Program1184046583

Verify Elizabeth Lager Hammerstrand 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 258441
    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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43% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

726 Medicare Part D claims for 151 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 31 claims were for opioids.

  1. Elizabeth Hammerstrand726
  2. Specialty average1,280

Most prescribed

  1. Anastrozole115 claims
  2. Eliquis66 claims
  3. Lorazepam51 claims
  4. Omeprazole37 claims
  5. Letrozole30 claims
  6. Promacta27 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. Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncNeedham, MA

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

Elizabeth Lager Hammerstrand among 1,465 adult health nurse practitioner records in Massachusetts

Elizabeth Lager Hammerstrand, NP is one of 1,465 adult health nurse practitioner records with a practice address in Massachusetts. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 73% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2004 · median 2010 among the 634 with a school on file
  • Record last updated2007 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

454 adult health nurse practitioner records list a practice address in Boston

They are 454 of the 41,865 NPPES records with a practice address in Boston, and 1,465 adult health nurse practitioner records in Massachusetts.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Christine Agius, RN, MSN, NP-C, RNCBoston, MA 021151932114790
  2. Laurie Appleby, N.P.Boston, MA 021151003832460
  3. Lori Buswell, NPBoston, MA 021151184699811
  4. Mary Carr Reynolds, RNCSBoston, MA 021151366499360
  5. Kelly Cummings, NPBoston, MA 021151861417685
  6. Karen Flaherty, MSN, APRN-BCBoston, MA 021151558379982
  7. Jennifer Kales, ANPBoston, MA 021151538136684
  8. Maureen Lynch, APRNBoston, MA 021151598702508

Common questions

What is Elizabeth Lager Hammerstrand, NP's NPI number?

Elizabeth Lager Hammerstrand, NP's National Provider Identifier (NPI) is 1295762177, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Lager Hammerstrand, NP located?

The NPPES record lists a practice address at 44 Binney St, Boston, MA, 02115. Phone: (617) 632-6309. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Lager Hammerstrand, NP's license?

NPPES lists Massachusetts license number 258441, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Elizabeth Lager Hammerstrand, NP prescribe under Medicare Part D?

In 2024, Elizabeth Lager Hammerstrand, NP had 726 Medicare Part D claims for 151 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.