Mary Elizabeth Vanalstyne, MS APRN FNP-BC
Family Nurse Practitioner · Littleton, NH
Mary Elizabeth Vanalstyne, MS APRN FNP-BC is a family nurse practitioner with a practice address in Littleton, New Hampshire, and NPI 1912158825, issued on Oct 9, 2008. Check the license (New Hampshire 074523-23, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Elizabeth Vanalstyne
- Credential
- MS APRN FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 074523-23 NH
335544 NY
Self-reported in NPPES; status is on the state search - Practice location
- 600 Saint Johnsbury RD, Littleton, NH 03561
- Phone
- (603) 444-9565
- Enumerated
- Oct 9, 2008
- Record last updated
- Aug 17, 2022
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 1,377 in New Hampshire → Look up another NPI →
Also registered at 600 Saint Johnsbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Devon Barger, CRNACertified Registered Nurse Anesthetist1902855224
- Britney Bigelow, APRNNurse Practitioner1497344055
- Alexandra Bishop, MDOrthopaedic Surgery Physician1679465389
- Andrew BorgheseMedical Physician Assistant1811377518
- Hilary Bradshaw, OTR/LOccupational Therapist1780902072
- George Braff, MDDiagnostic Radiology Physician1235179821
Verify Mary Elizabeth Vanalstyne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 074523-23Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family nurse practitioner in 2024
175 Medicare Part D claims for 62 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 15 claims were for opioids.
Most prescribed
- Lorazepam17 claims
- Quetiapine Fumarate12 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.
Mary Elizabeth Vanalstyne among 1,377 family nurse practitioner records in New Hampshire
Mary Elizabeth Vanalstyne, MS APRN FNP-BC is one of 1,377 family nurse practitioner records with a practice address in New Hampshire. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 20% of them.
- NPI issued2008 · 20% of these records are older, 79% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2022 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 family nurse practitioner records list a practice address in Littleton
They are 9 of the 304 NPPES records with a practice address in Littleton, and 1,377 family nurse practitioner records in New Hampshire.
All 1,377 in New Hampshire → Every provider in Littleton → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Julie Ferland, APRNLittleton, NH 035611720605645
- Nicole Fischler, APRNLittleton, NH 035611356490312
- Kristen O'Hara, APRNLittleton, NH 035611982312278
- Stephanie Olivares, FNPLittleton, NH 035611871251702
- Michael Scanlon, NP, MPHLittleton, NH 035611407821036
- Jaclyn Siegel, APRN, FNP-C, IBCLCLittleton, NH 035611356053763
- Anthony Signorine, APRNLittleton, NH 035611700328614
- Donna Toohey, FNP-BCLittleton, NH 035611750040267
Common questions
What is Mary Elizabeth Vanalstyne, MS APRN FNP-BC's NPI number?
Mary Elizabeth Vanalstyne, MS APRN FNP-BC's National Provider Identifier (NPI) is 1912158825, issued on Oct 9, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Mary Elizabeth Vanalstyne, MS APRN FNP-BC located?
The NPPES record lists a practice address at 600 Saint Johnsbury RD, Littleton, NH, 03561. Phone: (603) 444-9565. Providers update this record themselves, so call before visiting.
How can I verify Mary Elizabeth Vanalstyne, MS APRN FNP-BC's license?
NPPES lists New Hampshire license number 074523-23, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Elizabeth Vanalstyne, MS APRN FNP-BC prescribe under Medicare Part D?
In 2024, Mary Elizabeth Vanalstyne, MS APRN FNP-BC had 175 Medicare Part D claims for 62 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.