NPPES file of Aug 9, 2026

Monica Sim, CRNP

Family Nurse Practitioner · Rockville, MD

Monica Sim, CRNP is a family nurse practitioner with a practice address in Rockville, Maryland, and NPI 1679441653, issued on Oct 29, 2025. Check the license (Maryland R263649, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679441653
Name
Monica Sim
Credential
CRNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
R263649 MD
Self-reported in NPPES; status is on the state search
Practice location
9901 Medical Center Dr, Rockville, MD 20850
Phone
(240) 826-6000
Enumerated
Oct 29, 2025
Record last updated
Oct 29, 2025
Medicare enrollment
Enrolled (PECOS I20260129002376); 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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8 nearest family nurse practitioner records → All 4,124 in Maryland → Look up another NPI →

Also registered at 9901 Medical Center Dr

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

  1. Crystal Addison, P.T.Physical Therapist1407079577
  2. Olatejumade AdegbenroPharmacist1366889768
  3. Aaron Adler, PA-CPhysician Assistant1346571767
  4. Mehrdad Akhlaghi, MDInternal Medicine Physician1124019062
  5. Nelson Akwo, PHARM.D.Pharmacist1902054273
  6. Jude Alexander, MDPsychiatry Physician1093706939

Verify Monica Sim 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 R263649    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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Bills Medicare through one group practice

  1. Zeus Primary Care Associates LLCRockville, MD

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

Monica Sim among 4,124 family nurse practitioner records in Maryland

Monica Sim, CRNP is one of 4,124 family nurse practitioner records with a practice address in Maryland. 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 2025, is newer than 93% of them.

  • NPI issued2025 · 93% of these records are older, 2% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2025 · median 2019 among the 2,370 with a school on file
  • Record last updated2025 · 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

146 family nurse practitioner records list a practice address in Rockville

They are 146 of the 14,353 NPPES records with a practice address in Rockville, and 4,124 family nurse practitioner records in Maryland.

All 4,124 in Maryland → Every provider in Rockville → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Gussie Assam, FNP-CRockville, MD 208501184981300
  2. Kelley Bennett, CRNPRockville, MD 208501932267903
  3. Leslie Boylan, CRNPRockville, MD 208501700937075
  4. Chibuzo Efuribe, DNP, FNP, PMHNP-BCRockville, MD 208501861776346
  5. Maria Ferraris Araneta, CRNPRockville, MD 208501679579148
  6. Andrea Hagen, CRNPRockville, MD 208501952606634
  7. Lisa Hockman, CRNPRockville, MD 208501265465165
  8. Lemolls Johny, CRNPRockville, MD 208501467639971

Common questions

What is Monica Sim, CRNP's NPI number?

Monica Sim, CRNP's National Provider Identifier (NPI) is 1679441653, issued on Oct 29, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Monica Sim, CRNP located?

The NPPES record lists a practice address at 9901 Medical Center Dr, Rockville, MD, 20850. Phone: (240) 826-6000. Providers update this record themselves, so call before visiting.

How can I verify Monica Sim, CRNP's license?

NPPES lists Maryland license number R263649, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity 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.