NPPES file of Aug 9, 2026

William Javier Rosales Gonzalez, MD

Sleep Medicine (Family Medicine) Physician · Waldorf, MD

William Javier Rosales Gonzalez, MD is a sleep medicine (family medicine) physician with a practice address in Waldorf, Maryland, and NPI 1528731098, issued on Jul 29, 2021. Check the license (Maryland D0104463, as entered in NPPES) on the Maryland Board of Physicians; 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
1528731098
Name
William Javier Rosales Gonzalez
Credential
MD
Primary taxonomy
Sleep Medicine (Family Medicine) Physician 207QS1201X
License number
D0104463 MD
Self-reported in NPPES; status is on the state search
Practice location
3575 Old Washington RD Ste C, Waldorf, MD 20602
Phone
(301) 638-5500
Enumerated
Jul 29, 2021
Record last updated
Oct 17, 2025
Medicare enrollment
Enrolled (PECOS I20251107002617); 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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Verify William Javier Rosales Gonzalez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0104463
    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
Open the Maryland license search

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6% more Medicare Part D claims than the average sleep medicine (family medicine) physician in 2024

761 Medicare Part D claims for 110 beneficiaries, against an average of 718 among the 211 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. William Rosales Gonzalez761
  2. Specialty average718

Most prescribed

  1. Gabapentin56 claims
  2. Lisinopril45 claims
  3. Amlodipine Besylate40 claims
  4. Atorvastatin Calcium34 claims
  5. Pantoprazole Sodium26 claims
  6. Meloxicam20 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. Privia Medical Group, LLCWaldorf, MD

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

Sleep Medicine (Family Medicine) Physician providers in Maryland

There are 5 sleep medicine (family medicine) physician records in Maryland.

The 4 sleep medicine (family medicine) physician records with the nearest ZIP codes

  1. Nauras Hwig, MDWaldorf, MD 206021396237582
  2. Talar Kachechian, DORockville, MD 208501386140259
  3. Mohammad Darbandi, DOCockeysville, MD 210301548616931
  4. Naurez Qasim, M.D.Baltimore, MD 212151851967079

Common questions

What is William Javier Rosales Gonzalez, MD's NPI number?

William Javier Rosales Gonzalez, MD's National Provider Identifier (NPI) is 1528731098, issued on Jul 29, 2021. An NPI identifies a provider in billing; it is not a license.

Where is William Javier Rosales Gonzalez, MD located?

The NPPES record lists a practice address at 3575 Old Washington RD Ste C, Waldorf, MD, 20602. Phone: (301) 638-5500. Providers update this record themselves, so call before visiting.

How can I verify William Javier Rosales Gonzalez, MD's license?

NPPES lists Maryland license number D0104463, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William Javier Rosales Gonzalez, MD prescribe under Medicare Part D?

In 2024, William Javier Rosales Gonzalez, MD had 761 Medicare Part D claims for 110 beneficiaries; the average among sleep medicine (family medicine) physician prescribers was 718. 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.