NPPES file of Aug 9, 2026

Katherine E. Niegisch, M.D.

Obstetrics & Gynecology Physician · Concord, NH

Katherine E. Niegisch, M.D. is an obstetrics & gynecology physician with a practice address in Concord, New Hampshire, and NPI 1003347402, issued on Mar 27, 2017. Check the license (New Hampshire 21560, 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
1003347402
Name
Katherine E. Niegisch
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
21560 NH
Self-reported in NPPES; status is on the state search
Practice location
253 Pleasant St, Concord, NH 03301
Phone
(603) 226-6117
Enumerated
Mar 27, 2017
Record last updated
Jul 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210804000644); accepts Medicare assignment
Medical or professional school
Creighton University School Of Medicine, 2017
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 253 Pleasant St

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

  1. Kenneth Adams, PA-CMedical Physician Assistant1154340677
  2. Brityn Alie, CNMAdvanced Practice Midwife1093747255
  3. Miranda Anderson, RNDiabetes Educator Registered Nurse1881846160
  4. Betty-Jane Anz, RN, BSN, CDEDiabetes Educator Registered Nurse1649497041
  5. Lisa Atkinson, MDInternal Medicine Physician1205843505
  6. Kristen Awrich, RNDiabetes Educator Registered Nurse1902082191

Verify Katherine E. Niegisch 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 21560
    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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50% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

82 Medicare Part D claims for 39 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Katherine Niegisch82
  2. Specialty average165

Most prescribed

  1. Clobetasol Propionate19 claims
  2. Estradiol13 claims
  3. Sprintec11 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 practice group's MIPS final score for 2023 (Medicare payment program): 69.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score55.6
  2. Costout of 100 · 30%42.4
  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, group reporting; category weights for 2023 (qpp.cms.gov).

2 hospitals and group practices

  1. Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospitals3 of 5 stars
  2. Dartmouth-Hitchcock ClinicLebanon, NH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Katherine E. Niegisch among 240 obstetrics & gynecology physician records in New Hampshire

Katherine E. Niegisch, M.D. is one of 240 obstetrics & gynecology 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 2017, is newer than 85% of them.

  • NPI issued2017 · 85% of these records are older, 13% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2017 · median 2006 among the 157 with a school on file
  • Record last updated2021 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in New Hampshire

There are 240 obstetrics & gynecology physician records in New Hampshire.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Ashish Chaudhari, MDConcord, NH 033011396811279
  2. David Conway, M.D.Concord, NH 033011063415412
  3. Mary Danca, M.D.Concord, NH 033011770586497
  4. Mary Fiske, M.D.Concord, NH 033011740285501
  5. Linda Haller, MDConcord, NH 033011629060017
  6. Heidi Hallonquist, MDConcord, NH 033011477613388
  7. Mark Kegel, MDConcord, NH 033011346254562
  8. Elisabeth Mayland, M.D.Concord, NH 033011326060732

Common questions

What is Katherine E. Niegisch, M.D.'s NPI number?

Katherine E. Niegisch, M.D.'s National Provider Identifier (NPI) is 1003347402, issued on Mar 27, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Katherine E. Niegisch, M.D. located?

The NPPES record lists a practice address at 253 Pleasant St, Concord, NH, 03301. Phone: (603) 226-6117. Providers update this record themselves, so call before visiting.

How can I verify Katherine E. Niegisch, M.D.'s license?

NPPES lists New Hampshire license number 21560, 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 Katherine E. Niegisch, M.D. prescribe under Medicare Part D?

In 2024, Katherine E. Niegisch, M.D. had 82 Medicare Part D claims for 39 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Katherine E. Niegisch, M.D.'s MIPS final score?

The 2023 MIPS final score is 69.4 of 100, reported for the practice group. 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.