NPPES file of Aug 9, 2026

Mary Ann G. Walker, NP

Acute Care Nurse Practitioner · Ny, NY

Mary Ann G. Walker, NP is an acute care nurse practitioner with a practice address in Ny, New York, and NPI 1992974125, issued on Feb 21, 2008. Check the license (New York 430076, as entered in NPPES) with the New York 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
1992974125
Name
Mary Ann G. Walker
Credential
NP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
430076 NY
Self-reported in NPPES; status is on the state search
Practice location
1 Gustavel Levy Place, Ny, NY 10029
Phone
(212) 241-8095
Enumerated
Feb 21, 2008
Record last updated
Feb 21, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Mary Ann G. Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 430076
    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
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69% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024

182 Medicare Part D claims for 58 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D.

  1. Mary Ann Walker182
  2. Specialty average594

Most prescribed

  1. Pantoprazole Sodium15 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.

Industry payments in 2024: $19.28

1 payment: food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 10,984 providers of this specialty with any payment received $647.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Ann Walker$19.28
  2. Specialty average$647.94

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Mary Ann G. Walker among 1,720 acute care nurse practitioner records in New York

Mary Ann G. Walker, NP is one of 1,720 acute care nurse practitioner records with a practice address in New York. 73% 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 10% of them.

  • NPI issued2008 · 10% of these records are older, 87% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2008 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in New York

There are 1,720 acute care nurse practitioner records in New York.

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Marites Arizabal, NPNew York, NY 100291992961205
  2. Tracy Valerie Bertiz, NPNew York, NY 100291033388111
  3. Simonette Cipolla, ACNPNew York, NY 100291396912929
  4. Lorna Hew, ACNPNew York, NY 100291649435207
  5. Vena Jennings, ANPNew York, NY 100291609030543
  6. Eunjeong Kim, APRN,BCNew York, NY 100291679767933
  7. Melissa Mattimore, RN, ACNPNew York, NY 100291710140793
  8. Jeanne Messana, ACNPNew York, NY 100291386777001

Common questions

What is Mary Ann G. Walker, NP's NPI number?

Mary Ann G. Walker, NP's National Provider Identifier (NPI) is 1992974125, issued on Feb 21, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mary Ann G. Walker, NP located?

The NPPES record lists a practice address at 1 Gustavel Levy Place, Ny, NY, 10029. Phone: (212) 241-8095. Providers update this record themselves, so call before visiting.

How can I verify Mary Ann G. Walker, NP's license?

NPPES lists New York license number 430076, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Ann G. Walker, NP prescribe under Medicare Part D?

In 2024, Mary Ann G. Walker, NP had 182 Medicare Part D claims for 58 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.