NPPES file of Aug 9, 2026

Sharnell Williams, CRNP, AGNP-C

Adult Health Nurse Practitioner · Rockville, MD

Sharnell Williams, CRNP, AGNP-C is an adult health nurse practitioner with a practice address in Rockville, Maryland, and NPI 1508639402, issued on Nov 1, 2023. Check the license (Maryland R210438, 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
1508639402
Name
Sharnell Williams
Credential
CRNP, AGNP-C
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
R210438 MD
Self-reported in NPPES; status is on the state search
Practice location
15245 Shady Grove RD, Rockville, MD 20850
Phone
(301) 527-1650
Enumerated
Nov 1, 2023
Record last updated
Apr 6, 2024
Medicare enrollment
Enrolled (PECOS I20240805003455); 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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Also registered at 15245 Shady Grove RD

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

  1. Lydia Badra, MSPTPhysical Therapist1316905490
  2. Kathryn Bank, M.A CCC-SLPSpeech-Language Pathologist1225160963
  3. Debra Bieber, LCSW-CClinical Social Worker1124143599
  4. Cori Bortnem, CCC-SLPSpeech-Language Pathologist1174959258
  5. Katherine BredikinSpeech-Language Pathologist1851905103
  6. Emily Carlson, PHDClinical Neuropsychologist1851121636

Verify Sharnell Williams 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 R210438
    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

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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23% more Medicare Part D claims than the average adult health nurse practitioner in 2024

1,570 Medicare Part D claims for 221 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 84 claims were for opioids.

  1. Sharnell Williams1,570
  2. Specialty average1,280

Most prescribed

  1. Amlodipine Besylate76 claims
  2. Atorvastatin Calcium74 claims
  3. Mirtazapine61 claims
  4. Tramadol Hcl61 claims
  5. Lorazepam58 claims
  6. Levothyroxine Sodium55 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: $175.75

8 payments; by number, the most common kind was food and beverage; the largest payer was Exact Sciences Corporation. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sharnell Williams$175.75
  2. Specialty average$946.40

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. Professional Services OF Holy CrossSilver Spring, MD

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

Sharnell Williams among 902 adult health nurse practitioner records in Maryland

Sharnell Williams, CRNP, AGNP-C is one of 902 adult health nurse practitioner records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 91% of them.

  • NPI issued2023 · 91% of these records are older, 5% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2022 · median 2014 among the 386 with a school on file
  • Record last updated2024 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Maryland

There are 902 adult health nurse practitioner records in Maryland.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Marianne Borelli, CRNPRockville, MD 208501407813553
  2. Olga Dekhtiareva, CRNP ADULTRockville, MD 208501336377498
  3. Karen Fox, CRNPRockville, MD 208501821153925
  4. Mary Godwin, CRNPRockville, MD 208501689667941
  5. Amy Hernandez, CRNPRockville, MD 208501053655753
  6. Julia Kariya, C.R.N.P.Rockville, MD 208501578511903
  7. Andrea Kohn, CRNPRockville, MD 208501639339831
  8. Johnnilyn Kutten, RN, MS, CRNP-ARockville, MD 208501417110933

Common questions

What is Sharnell Williams, CRNP, AGNP-C's NPI number?

Sharnell Williams, CRNP, AGNP-C's National Provider Identifier (NPI) is 1508639402, issued on Nov 1, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Sharnell Williams, CRNP, AGNP-C located?

The NPPES record lists a practice address at 15245 Shady Grove RD, Rockville, MD, 20850. Phone: (301) 527-1650. Providers update this record themselves, so call before visiting.

How can I verify Sharnell Williams, CRNP, AGNP-C's license?

NPPES lists Maryland license number R210438, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Sharnell Williams, CRNP, AGNP-C prescribe under Medicare Part D?

In 2024, Sharnell Williams, CRNP, AGNP-C had 1,570 Medicare Part D claims for 221 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.