Kristin A. Mallett, M.D.
Family Medicine Physician · Portsmouth, NH
Kristin A. Mallett, M.D. is a family medicine physician with a practice address in Portsmouth, New Hampshire, and NPI 1972739761, issued on Jun 8, 2009. Check the license (New Hampshire 33855, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Kristin A. Mallett
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 33855 NH
250861 MA
Self-reported in NPPES; status is on the state search - Practice location
- 67 Corporate Dr, Portsmouth, NH 03801
- Phone
- (603) 610-8050
- Enumerated
- Jun 8, 2009
- Record last updated
- Jan 29, 2025
- Medicaid ID
- 110092695A MA
- Medicare enrollment
- Enrolled (PECOS I20250210001998); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 816 in New Hampshire → Look up another NPI →
Also registered at 67 Corporate Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vanessa Amatucci, APRNNurse Practitioner1053835975
- Gita Devi Bhattarai Paudel, APRNFamily Nurse Practitioner1720838584
- Michelle Brong, CNMAdvanced Practice Midwife1255931465
- Bikramjeet Dolla, APRNFamily Nurse Practitioner1417555301
- Kyle Estell, DPTPhysical Therapist1417559154
- Nicole LakeClinical Social Worker1285211300
Verify Kristin A. Mallett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 33855Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average family medicine physician in 2024
2,803 Medicare Part D claims for 378 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 123 claims were for opioids.
Most prescribed
- Atorvastatin Calcium185 claims
- Lisinopril113 claims
- Losartan Potassium104 claims
- Omeprazole100 claims
- Amlodipine Besylate81 claims
- Escitalopram Oxalate76 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
- Wentworth Douglass Physician CorporationPortsmouth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kristin A. Mallett among 816 family medicine physician records in New Hampshire
Kristin A. Mallett, M.D. is one of 816 family medicine physician records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 67% of them.
- NPI issued2009 · 67% of these records are older, 31% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2009 · median 2003 among the 498 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 family medicine physician records list a practice address in Portsmouth
They are 36 of the 1,860 NPPES records with a practice address in Portsmouth, and 816 family medicine physician records in New Hampshire.
All 816 in New Hampshire → Every provider in Portsmouth → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Keenan Al-Hojerry, MDPortsmouth, NH 038011063468981
- Mark Ballentyne, MDPortsmouth, NH 038011669404661
- David Gagnon, MDPortsmouth, NH 038011831145259
- Jennifer Koop, MDPortsmouth, NH 038011699769372
- George Kousaie, MDPortsmouth, NH 038011548263437
- Susan Krolewski, MDPortsmouth, NH 038011467406710
- Kenneth Lajoie, DOPortsmouth, NH 038011730142175
- M. Lauter, M.D.Portsmouth, NH 038011366544819
Common questions
What is Kristin A. Mallett, M.D.'s NPI number?
Kristin A. Mallett, M.D.'s National Provider Identifier (NPI) is 1972739761, issued on Jun 8, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Kristin A. Mallett, M.D. located?
The NPPES record lists a practice address at 67 Corporate Dr, Portsmouth, NH, 03801. Phone: (603) 610-8050. Providers update this record themselves, so call before visiting.
How can I verify Kristin A. Mallett, M.D.'s license?
NPPES lists New Hampshire license number 33855, 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 Kristin A. Mallett, M.D. prescribe under Medicare Part D?
In 2024, Kristin A. Mallett, M.D. had 2,803 Medicare Part D claims for 378 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.