David Gan, M.D., DR.PH
Public Health & General Preventive Medicine Physician · Rockville, MD
David Gan, M.D., DR.PH is a public health & general preventive medicine physician with a practice address in Rockville, Maryland, and NPI 1497073092, issued on May 7, 2010. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- David Gan
- Credential
- M.D., DR.PH
- Primary taxonomy
- Public Health & General Preventive Medicine Physician 2083P0901X
- License number
- 024523 LA
Self-reported in NPPES; status is on the state search - Practice location
- 14316 Travilah RD, Rockville, MD 20850
- Phone
- (301) 529-6821
- Enumerated
- May 7, 2010
- Record last updated
- May 7, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest public health & general preventive medicine physician records → All 130 in Maryland → Look up another NPI →
Verify David Gan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average public health & general preventive medicine physician in 2024
15 Medicare Part D claims, against an average of 820 among the 336 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
David Gan among 130 public health & general preventive medicine physician records in Maryland
David Gan, M.D., DR.PH is one of 130 public health & general preventive medicine physician records with a practice address in Maryland. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 54% of them.
- NPI issued2010 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 17% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2010 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083P0901X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Public Health & General Preventive Medicine Physician providers in Maryland
There are 130 public health & general preventive medicine physician records in Maryland.
All 130 in Maryland → Every provider in Rockville → Public Health & General Preventive Medicine Physician nationwide →
The 8 public health & general preventive medicine physician records with the nearest ZIP codes
- Jennifer Croswell, MD, MPHRockville, MD 208501487068011
- Curi Kim, M.D.Rockville, MD 208501477703916
- Lisa Pearse, MD, MPHRockville, MD 208501144204017
- Robert Wise, MD, MPHRockville, MD 208501518081488
- Erika Olson, MDRockville, MD 208521740952670
- Mark Schiffman, M.D.Rockville, MD 208521386933281
- Joseph Chin, M.D.Rockville, MD 208541932369451
- Michael Lewis, MDPotomac, MD 208541740465004
Common questions
What is David Gan, M.D., DR.PH's NPI number?
David Gan, M.D., DR.PH's National Provider Identifier (NPI) is 1497073092, issued on May 7, 2010. An NPI identifies a provider in billing; it is not a license.
Where is David Gan, M.D., DR.PH located?
The NPPES record lists a practice address at 14316 Travilah RD, Rockville, MD, 20850. Phone: (301) 529-6821. Providers update this record themselves, so call before visiting.
How can I verify David Gan, M.D., DR.PH's license?
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 David Gan, M.D., DR.PH prescribe under Medicare Part D?
In 2024, David Gan, M.D., DR.PH had 15 Medicare Part D claims; the average among public health & general preventive medicine physician prescribers was 820. 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.