NPPES file of Aug 9, 2026

Alyssa K. Larimore, M.S., C.R.N.P., R.N.

Obstetrics & Gynecology Nurse Practitioner · Frederick, MD

Alyssa K. Larimore, M.S., C.R.N.P., R.N. is an obstetrics & gynecology nurse practitioner with a practice address in Frederick, Maryland, and NPI 1841411345, issued on May 1, 2007. Check the license (Maryland R139855, as entered in NPPES) with the Maryland 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
1841411345
Name
Alyssa K. Larimore
Credential
M.S., C.R.N.P., R.N.
Primary taxonomy
Obstetrics & Gynecology Nurse Practitioner 363LX0001X
License number
R139855 MD
Self-reported in NPPES; status is on the state search
Practice location
61 Thomas Johnson Dr, Frederick, MD 21702
Phone
(301) 663-6171
Enumerated
May 1, 2007
Record last updated
Nov 2, 2023
Fax
(301) 695-4469
Medicare enrollment
Enrolled (PECOS I20150507000544); accepts Medicare assignment
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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8 nearest obstetrics & gynecology nurse practitioner records → All 82 in Maryland → Look up another NPI →

Also registered at 61 Thomas Johnson Dr

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

  1. Selamawit AbegazObstetrics & Gynecology Nurse Practitioner1619794047
  2. Taro Adachi, MDGynecology Physician1376638213
  3. Gerardo Araiza, MDObstetrics & Gynecology Physician1023091709
  4. Leonard Bienkowski, MDObstetrics & Gynecology Physician1205819984
  5. Kimberly Capone, CRNPObstetrics & Gynecology Nurse Practitioner1174508063
  6. Allison Groff, M.D.Obstetrics & Gynecology Physician1346568557

Verify Alyssa K. Larimore in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license R139855    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 Maryland license search

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46% fewer Medicare Part D claims than the average obstetrics & gynecology nurse practitioner in 2024

107 Medicare Part D claims for 26 beneficiaries, against an average of 198 among the 1,094 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.

  1. Alyssa Larimore107
  2. Specialty average198

Most prescribed

  1. Estradiol23 claims
  2. Progesterone18 claims
  3. Estradiol (Once Weekly)13 claims
  4. Estradiol (Twice Weekly)13 claims
  5. Imvexxy12 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: $254.44

13 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 1,033 providers of this specialty with any payment received $439.39 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alyssa Larimore$254.44
  2. Specialty average$439.39

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. Capital Womens Care LLCMount Airy, MD

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

Alyssa K. Larimore among 82 obstetrics & gynecology nurse practitioner records in Maryland

Alyssa K. Larimore, M.S., C.R.N.P., R.N. is one of 82 obstetrics & gynecology nurse practitioner records with a practice address in Maryland. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 57% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2001 · median 2016 among the 33 with a school on file
  • Record last updated2023 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LX0001X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Nurse Practitioner providers in Maryland

There are 82 obstetrics & gynecology nurse practitioner records in Maryland.

All 82 in Maryland → Every provider in Frederick → Obstetrics & Gynecology Nurse Practitioner nationwide →

The 8 obstetrics & gynecology nurse practitioner records with the nearest ZIP codes

  1. Selamawit AbegazFrederick, MD 217021619794047
  2. Sylvia Bennett, CRNPFrederick, MD 217021740279413
  3. Kimberly Capone, CRNPFrederick, MD 217021174508063
  4. Dawn Mossburg, CRNPFrederick, MD 217021821131939
  5. Ashley Olszewski, CRNPFrederick, MD 217021396462859
  6. Emily WeaverHagerstown, MD 217401295326163
  7. Pamela Eberhard, CRNPDenton, MD 216291316101827
  8. Mary Elliott, CRNPCambridge, MD 216131932101862

Common questions

What is Alyssa K. Larimore, M.S., C.R.N.P., R.N.'s NPI number?

Alyssa K. Larimore, M.S., C.R.N.P., R.N.'s National Provider Identifier (NPI) is 1841411345, issued on May 1, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alyssa K. Larimore, M.S., C.R.N.P., R.N. located?

The NPPES record lists a practice address at 61 Thomas Johnson Dr, Frederick, MD, 21702. Phone: (301) 663-6171. Providers update this record themselves, so call before visiting.

How can I verify Alyssa K. Larimore, M.S., C.R.N.P., R.N.'s license?

NPPES lists Maryland license number R139855, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Alyssa K. Larimore, M.S., C.R.N.P., R.N. prescribe under Medicare Part D?

In 2024, Alyssa K. Larimore, M.S., C.R.N.P., R.N. had 107 Medicare Part D claims for 26 beneficiaries; the average among obstetrics & gynecology nurse practitioner prescribers was 198. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.