NPPES file of Aug 9, 2026

Guoping Xu, MD MS

Family Medicine Physician · Frederick, MD

Guoping Xu, MD MS is a family medicine physician with a practice address in Frederick, Maryland, and NPI 1972606481, issued on Sep 7, 2006. Check the license (Maryland D58113, 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
1972606481
Name
Guoping Xu
Credential
MD MS
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
D58113 MD
Self-reported in NPPES; status is on the state search
Practice location
45 Thomas Johnson Dr Ste 109, Frederick, MD 21702
Phone
(301) 696-1000
Enumerated
Sep 7, 2006
Record last updated
May 29, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
799601200 MD
Medicare enrollment
Enrolled (PECOS I20101112000274); 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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Also registered at 45 Thomas Johnson Dr Ste 109

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

  1. Rachel MeltzerFamily Nurse Practitioner1851089007

Verify Guoping Xu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D58113
    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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16% fewer Medicare Part D claims than the average family medicine physician in 2024

2,992 Medicare Part D claims for 357 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 18 claims were for opioids.

  1. Guoping Xu2,992
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium285 claims
  2. Losartan Potassium220 claims
  3. Amlodipine Besylate157 claims
  4. Metformin Hcl105 claims
  5. Levothyroxine Sodium102 claims
  6. Metoprolol Succinate101 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 2 group practices

  1. Amber Hill Physical Therapy IncFrederick, MD
  2. Johns Hopkins Community Physicians, IncFrederick, MD

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

Guoping Xu among 1,912 family medicine physician records in Maryland

Guoping Xu, MD MS is one of 1,912 family medicine physician records with a practice address in Maryland. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 54% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1982 · median 2004 among the 1,141 with a school on file
  • Record last updated2018 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

65 family medicine physician records list a practice address in Frederick

They are 65 of the 3,981 NPPES records with a practice address in Frederick, and 1,912 family medicine physician records in Maryland.

The 8 family medicine physician records with the nearest ZIP codes

  1. Joseph Ashwal, M.D.Frederick, MD 217021508840026
  2. Debra Bavari, M.D.Frederick, MD 217021184600876
  3. Barbara Brookmyer, M.D.Frederick, MD 217021548259203
  4. Eugene Casagrande, MDFrederick, MD 217021407826886
  5. Gerard Delgrippo, M.D.Frederick, MD 217021447233234
  6. Mary-Elizabeth Delmonte, MDFort Detrick, MD 217021952391377
  7. Edward Fisher, M.D.Frederick, MD 217021639153117
  8. Rebecca Herman-Smith, D.O.Frederick, MD 217021447241997

Common questions

What is Guoping Xu, MD MS's NPI number?

Guoping Xu, MD MS's National Provider Identifier (NPI) is 1972606481, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Guoping Xu, MD MS located?

The NPPES record lists a practice address at 45 Thomas Johnson Dr Ste 109, Frederick, MD, 21702. Phone: (301) 696-1000. Providers update this record themselves, so call before visiting.

How can I verify Guoping Xu, MD MS's license?

NPPES lists Maryland license number D58113, 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 Guoping Xu, MD MS prescribe under Medicare Part D?

In 2024, Guoping Xu, MD MS had 2,992 Medicare Part D claims for 357 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.