John Do
Family Medicine Physician · Frederick, MD
John Do is a family medicine physician with a practice address in Frederick, Maryland, and NPI 1346990652, issued on Mar 28, 2022. Check the license (Maryland H0102911, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- John Do
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- H0102911 MD
Self-reported in NPPES; status is on the state search - Practice location
- 141 Thomas Johnson Dr Ste 100, Frederick, MD 21702
- Phone
- (301) 228-9123
- Enumerated
- Mar 28, 2022
- Record last updated
- Jul 7, 2025
- Medicare enrollment
- Enrolled (PECOS I20250808000474); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,912 in Maryland → Look up another NPI →
Also registered at 141 Thomas Johnson Dr Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Usha Sivakumar, M.D.Internal Medicine Physician1124001540
Verify John Do in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license H0102911Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average family medicine physician in 2024
234 Medicare Part D claims for 54 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate22 claims
- Atorvastatin Calcium20 claims
- Losartan Potassium17 claims
- Metformin Hcl16 claims
- Trazodone Hcl12 claims
- Oxybutynin Chloride Er11 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
- Privia Care Center LLCFrederick, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Do among 1,912 family medicine physician records in Maryland
John Do 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 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2004 among the 1,141 with a school on file
- Record last updated2025 · 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.
All 1,912 in Maryland → Every provider in Frederick → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joseph Ashwal, M.D.Frederick, MD 217021508840026
- Debra Bavari, M.D.Frederick, MD 217021184600876
- Barbara Brookmyer, M.D.Frederick, MD 217021548259203
- Eugene Casagrande, MDFrederick, MD 217021407826886
- Gerard Delgrippo, M.D.Frederick, MD 217021447233234
- Mary-Elizabeth Delmonte, MDFort Detrick, MD 217021952391377
- Edward Fisher, M.D.Frederick, MD 217021639153117
- Rebecca Herman-Smith, D.O.Frederick, MD 217021447241997
Common questions
What is John Do's NPI number?
John Do's National Provider Identifier (NPI) is 1346990652, issued on Mar 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is John Do located?
The NPPES record lists a practice address at 141 Thomas Johnson Dr Ste 100, Frederick, MD, 21702. Phone: (301) 228-9123. Providers update this record themselves, so call before visiting.
How can I verify John Do's license?
NPPES lists Maryland license number H0102911, 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 John Do prescribe under Medicare Part D?
In 2024, John Do had 234 Medicare Part D claims for 54 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.