NPPES file of Aug 9, 2026

Katelyn Buchholz, FNP-C

Family Nurse Practitioner · Portsmouth, NH

Katelyn Buchholz, FNP-C is a family nurse practitioner with a practice address in Portsmouth, New Hampshire, and NPI 1538627815, issued on Mar 6, 2019. Check the license (New Hampshire 074118-23, as entered in NPPES) with the New Hampshire 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
1538627815
Name
Katelyn Buchholz
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
074118-23 NH
Self-reported in NPPES; status is on the state search
Practice location
1600 Woodbury Ave, Portsmouth, NH 03801
Phone
(603) 602-9070
Enumerated
Mar 6, 2019
Record last updated
Apr 6, 2026
Fax
(603) 810-6881
Medicaid ID
3116927 NH
Medicare enrollment
Enrolled (PECOS I20190430000591); accepts Medicare assignment
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 1600 Woodbury Ave

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

  1. Ashley Holtan, FNPFamily Nurse Practitioner1093346322
  2. Min Ko, DDSGeneral Practice Dentistry1093238537
  3. Wenjing Luo, DMD/PHDGeneral Practice Dentistry1407522121
  4. Bridget Marvinsmith, MDFamily Medicine Physician1639517170
  5. Lauren McMullen, NP-CPrimary Care Nurse Practitioner1578996948
  6. Jocelyn Murray, RNRegistered Nurse1922678994

Verify Katelyn Buchholz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 074118-23
    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
Find 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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48% fewer Medicare Part D claims than the average family nurse practitioner in 2024

680 Medicare Part D claims for 107 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Katelyn Buchholz680
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium58 claims
  2. Levothyroxine Sodium47 claims
  3. Amlodipine Besylate37 claims
  4. Lisinopril32 claims
  5. Lorazepam24 claims
  6. Omeprazole24 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

  1. Convenientmd LLCPortsmouth, NH

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

Katelyn Buchholz among 1,377 family nurse practitioner records in New Hampshire

Katelyn Buchholz, FNP-C is one of 1,377 family nurse practitioner records with a practice address in New Hampshire. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 58% of them.

  • NPI issued2019 · 58% of these records are older, 36% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2019 · median 2018 among the 901 with a school on file
  • Record last updated2026 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 family nurse practitioner records list a practice address in Portsmouth

They are 39 of the 1,860 NPPES records with a practice address in Portsmouth, and 1,377 family nurse practitioner records in New Hampshire.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Karen Adams, APRN FNP-BC MSN CDENewington, NH 038011366680787
  2. Stephanie Ayan, APRNPortsmouth, NH 038011861738320
  3. Crystal Bonias, APRNPortsmouth, NH 038011548505902
  4. Andrea Breig, NPPortsmouth, NH 038011841602133
  5. Amy Coombs, ARNPNewington, NH 038011104914860
  6. Yohanna Garcia Hernandez, NPPortsmouth, NH 038011508267345
  7. Gene Harkless, ARNPPortsmouth, NH 038011669544201
  8. Pamela Larocque, NPPortsmouth, NH 038011427499698

Common questions

What is Katelyn Buchholz, FNP-C's NPI number?

Katelyn Buchholz, FNP-C's National Provider Identifier (NPI) is 1538627815, issued on Mar 6, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katelyn Buchholz, FNP-C located?

The NPPES record lists a practice address at 1600 Woodbury Ave, Portsmouth, NH, 03801. Phone: (603) 602-9070. Providers update this record themselves, so call before visiting.

How can I verify Katelyn Buchholz, FNP-C's license?

NPPES lists New Hampshire license number 074118-23, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

How much does Katelyn Buchholz, FNP-C prescribe under Medicare Part D?

In 2024, Katelyn Buchholz, FNP-C had 680 Medicare Part D claims for 107 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.