NPPES file of Aug 9, 2026

Jennifer Fay Gittzus, M.D.

Infectious Disease Physician · Concord, NH

Jennifer Fay Gittzus, M.D. is an infectious disease physician with a practice address in Concord, New Hampshire, and NPI 1518073386, issued on Aug 22, 2006. Check the license (New Hampshire 13316, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518073386
Name
Jennifer Fay Gittzus
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License numbers
13316 NH
RT1068 NH
Self-reported in NPPES; status is on the state search
Practice location
248 Pleasant St Ste 103, Concord, NH 03301
Phone
(603) 230-1939
Enumerated
Aug 22, 2006
Record last updated
Sep 28, 2023
Fax
(603) 227-7568
Medicare enrollment
Enrolled (PECOS I20070723000143); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 2002
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 248 Pleasant St Ste 103

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

  1. Jennifer Gaudet-Esenwine, MSN, APRNFamily Nurse Practitioner1720394497
  2. Rattanaporn Mahatanan, M.DInfectious Disease Physician1629380159
  3. James Noble, MDInfectious Disease Physician1518901552
  4. Ashley Pinkham-Riendeau, MS, CNL,APRN, FNP-CFamily Nurse Practitioner1730688789
  5. Joshua White, MDInfectious Disease Physician1407017684

Verify Jennifer Fay Gittzus 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 13316
    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

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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30% fewer Medicare Part D claims than the average infectious disease physician in 2024

480 Medicare Part D claims for 104 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Jennifer Gittzus480
  2. Specialty average689

Most prescribed

  1. Biktarvy68 claims
  2. Cephalexin65 claims
  3. Juluca24 claims
  4. Symtuza22 claims
  5. Clindamycin Hcl21 claims
  6. Sulfamethoxazole-Trimethoprim18 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.

The MIPS final score for 2023 (Medicare payment program): 89.4 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score72.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $201.40

3 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer Gittzus$201.40
  2. Specialty average$4,362.19

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

Bills Medicare through one group practice

  1. Concord Hospital IncConcord, NH

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

Jennifer Fay Gittzus among 49 infectious disease physician records in New Hampshire

Jennifer Fay Gittzus, M.D. is one of 49 infectious disease physician records with a practice address in New Hampshire. 82% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 51% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2002 · median 2003 among the 37 with a school on file
  • Record last updated2023 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in New Hampshire

There are 49 infectious disease physician records in New Hampshire.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Rattanaporn Mahatanan, M.DConcord, NH 033011629380159
  2. James Noble, MDConcord, NH 033011518901552
  3. Joshua White, MDConcord, NH 033011407017684
  4. Carl Dematteo, MDKeene, NH 034311619986676
  5. Ambreen Khalil, MDKeene, NH 034311063564268
  6. Aalok Khole, MDKeene, NH 034311689016792
  7. Alan Lein, M.D.Keene, NH 034311851473615
  8. Sergio Reyes Salcedo, MDKeene, NH 034311548880586

Common questions

What is Jennifer Fay Gittzus, M.D.'s NPI number?

Jennifer Fay Gittzus, M.D.'s National Provider Identifier (NPI) is 1518073386, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Fay Gittzus, M.D. located?

The NPPES record lists a practice address at 248 Pleasant St Ste 103, Concord, NH, 03301. Phone: (603) 230-1939. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Fay Gittzus, M.D.'s license?

NPPES lists New Hampshire license number 13316, 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 Jennifer Fay Gittzus, M.D. prescribe under Medicare Part D?

In 2024, Jennifer Fay Gittzus, M.D. had 480 Medicare Part D claims for 104 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is Jennifer Fay Gittzus, M.D.'s MIPS final score?

The 2023 MIPS final score is 89.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.