Gretchen Ann Machesney, NP
Acute Care Nurse Practitioner · La Plata, MD
Gretchen Ann Machesney, NP is an acute care nurse practitioner with a practice address in La Plata, Maryland, and NPI 1134658867, issued on Jun 6, 2017. Check the license (Maryland R247850, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gretchen Ann Machesney
- Credential
- NP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License numbers
- R247850 MD
APRN002639 NV
Self-reported in NPPES; status is on the state search - Practice location
- 5 Garrett Ave, La Plata, MD 20646
- Phone
- (301) 609-5439
- Enumerated
- Jun 6, 2017
- Record last updated
- Jul 9, 2025
- Fax
- (301) 609-5344
- Medicaid ID
- 1134658867 NV
- Medicare enrollment
- Enrolled (PECOS I20210702002303); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 755 in Maryland → Look up another NPI →
Also registered at 5 Garrett Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samuel Ameyaw, MDSurgical Assistant1891014684
- Deborah Araya, PA-CHospice and Palliative Medicine (Surgery) Physician1659445955
- Cheryl Beasley, M.A., CCC/SLPSpeech-Language Pathologist1588076848
- Becquie Berck, PAMedical Physician Assistant1679833206
Verify Gretchen Ann Machesney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R247850Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
281 Medicare Part D claims for 105 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Eliquis35 claims
- Metoprolol Succinate34 claims
- Furosemide20 claims
- Atorvastatin Calcium18 claims
- Clopidogrel15 claims
- Lisinopril13 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: $100.02
5 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 10,984 providers of this specialty with any payment received $647.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Adfinitas Health Palliative Services, LLCHagerstown, MD
- Mdics AT Civista LLCLa Plata, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gretchen Ann Machesney among 755 acute care nurse practitioner records in Maryland
Gretchen Ann Machesney, NP is one of 755 acute care nurse practitioner records with a practice address in Maryland. 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 2017, is newer than 51% of them.
- NPI issued2017 · 51% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2017 among the 494 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Maryland
There are 755 acute care nurse practitioner records in Maryland.
All 755 in Maryland → Every provider in La Plata → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Melissa Brown, N.P.La Plata, MD 206461750730222
- Donna Johnson, BSN,MS,CRNPLeonardtown, MD 206501730176520
- Kim Mercer-Smith, CRNPLeonardtown, MD 206501346809571
- Micky Santos, MSN, CRNPLexington Park, MD 206531144037177
- Heather Southwick, MS, AG-ACNPHuntingtown, MD 206391750756557
- Renee Grubbs, NP-BCMechanicsville, MD 206591326787102
- Marijo Cosmas, MS, RN, AOCN, CRNPPrince Frederick, MD 206781235126178
- Paul IwerieborPrince Frederick, MD 206781275162489
Common questions
What is Gretchen Ann Machesney, NP's NPI number?
Gretchen Ann Machesney, NP's National Provider Identifier (NPI) is 1134658867, issued on Jun 6, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Gretchen Ann Machesney, NP located?
The NPPES record lists a practice address at 5 Garrett Ave, La Plata, MD, 20646. Phone: (301) 609-5439. Providers update this record themselves, so call before visiting.
How can I verify Gretchen Ann Machesney, NP's license?
NPPES lists Maryland license number R247850, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Gretchen Ann Machesney, NP prescribe under Medicare Part D?
In 2024, Gretchen Ann Machesney, NP had 281 Medicare Part D claims for 105 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.