Thomas B. Heffelfinger, DDS
Dentist · Potomac, MD
Thomas B. Heffelfinger, DDS is a dentist with a practice address in Potomac, Maryland, and NPI 1033323365, issued on May 9, 2007. Check the license (Maryland 3916, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Thomas B. Heffelfinger
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 3916 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9001 River RD, Potomac, MD 20854
- Phone
- (301) 469-9100
- Enumerated
- May 9, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (301) 469-6572
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,870 in Maryland → Look up another NPI →
Verify Thomas B. Heffelfinger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 3916Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Thomas B. Heffelfinger among 1,870 dentist records in Maryland
Thomas B. Heffelfinger, DDS is one of 1,870 dentist records with a practice address in Maryland. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 20% of them.
- NPI issued2007 · 20% of these records are older, 65% newer
- In a Medicare fileNo · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 dentist records list a practice address in Potomac
They are 23 of the 497 NPPES records with a practice address in Potomac, and 1,870 dentist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,870 in Maryland → Every provider in Potomac → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Sara Amini-Zand, D.D.S.Potomac, MD 208541316116320
- Jay Chung, DDSPotomac, MD 208541194933325
- Warren Danick, DDSPotomac, MD 208541679607220
- Joseph Debenedictis, D.D.SPotomac, MD 208541992032775
- Naomi Disten, DDSPotomac, MD 208541912054305
- Inna Kost, DMDPotomac, MD 208541952352155
- Nanette Larose, DDSPotomac, MD 208541942212501
- Christopher Liang, DDSPotomac, MD 208541386667178
Common questions
What is Thomas B. Heffelfinger, DDS's NPI number?
Thomas B. Heffelfinger, DDS's National Provider Identifier (NPI) is 1033323365, issued on May 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas B. Heffelfinger, DDS located?
The NPPES record lists a practice address at 9001 River RD, Potomac, MD, 20854. Phone: (301) 469-9100. Providers update this record themselves, so call before visiting.
How can I verify Thomas B. Heffelfinger, DDS's license?
NPPES lists Maryland license number 3916, 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. 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.