NPPES file of Aug 9, 2026

Mark Robert Windt, M.D.

Allergy & Immunology Physician · North Hampton, NH

Mark Robert Windt, M.D. is an allergy & immunology physician with a practice address in North Hampton, New Hampshire, and NPI 1689625600, issued on May 15, 2006. Check the license (New Hampshire 7208, as entered in NPPES) on the New Hampshire Board of Medicine; 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
1689625600
Name
Mark Robert Windt
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
7208 NH
Self-reported in NPPES; status is on the state search
Practice location
65 Lafayette RD, North Hampton, NH 03862
Phone
(603) 964-3392
Enumerated
May 15, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(603) 964-3396
Medicaid ID
30008459 NH
Medicare enrollment
Enrolled (PECOS I20060508000850); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 1978
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 65 Lafayette RD

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

  1. Kelly Kean, ARNPFamily Nurse Practitioner1689620916

Verify Mark Robert Windt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license 7208
    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
Open the New Hampshire license search

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22% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

579 Medicare Part D claims for 100 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Mark Windt579
  2. Specialty average741

Most prescribed

  1. Trelegy Ellipta144 claims
  2. Fluticasone Propionate63 claims
  3. Famotidine42 claims
  4. Breo Ellipta41 claims
  5. Omeprazole33 claims
  6. Dulera22 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: $158.65

8 payments; by number, the most common kind was food and beverage; the largest payer was Blueprint Medicines Corporation. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Windt$158.65
  2. Specialty average$8,321.81

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

Mark Robert Windt among 14 allergy & immunology physician records in New Hampshire

Mark Robert Windt, M.D. is one of 14 allergy & immunology physician records with a practice address in New Hampshire. 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 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 43% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Record last updated2007 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 allergy & immunology physician record lists a practice address in North Hampton

They are 1 of the 51 NPPES records with a practice address in North Hampton, and 14 allergy & immunology physician records in New Hampshire.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Ashok Shah, MDRochester, NH 038671902894165
  2. David Goodman, MDLebanon, NH 037561134232374
  3. Karen Hsu Blatman, MDLebanon, NH 037561649484189
  4. An Huynh, MDLebanon, NH 037561467958652
  5. Anne Miranowski, M.D.Lebanon, NH 037561760536031
  6. Susan Mozzicato, M.D., M.H.S.Lebanon, NH 037561730352170
  7. Erin Reigh, MDLebanon, NH 037561912291337
  8. Donald Woodmansee, M.D.Lebanon, NH 037561144268624

Common questions

What is Mark Robert Windt, M.D.'s NPI number?

Mark Robert Windt, M.D.'s National Provider Identifier (NPI) is 1689625600, issued on May 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Robert Windt, M.D. located?

The NPPES record lists a practice address at 65 Lafayette RD, North Hampton, NH, 03862. Phone: (603) 964-3392. Providers update this record themselves, so call before visiting.

How can I verify Mark Robert Windt, M.D.'s license?

NPPES lists New Hampshire license number 7208, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Robert Windt, M.D. prescribe under Medicare Part D?

In 2024, Mark Robert Windt, M.D. had 579 Medicare Part D claims for 100 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.