Douglas L. Greenspan, DDS
Dentist · Gaithersburg, MD
Douglas L. Greenspan, DDS is a dentist with a practice address in Gaithersburg, Maryland, and NPI 1790797306, issued on Aug 12, 2006. Check the license (Maryland 7841, 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
- Douglas L. Greenspan
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 7841 MD
Self-reported in NPPES; status is on the state search - Practice location
- 213 Frederick Avenue, Gaithersburg, MD 20877
- Phone
- (301) 948-5858
- Enumerated
- Aug 12, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (301) 926-8566
- Entity
- Type 1 · individual
Verify Douglas L. Greenspan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 7841Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55 dentist records list a practice address in Gaithersburg
They are 55 of the 2,580 NPPES records with a practice address in Gaithersburg, and 1,870 dentist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 55 in Gaithersburg → All 1,870 in Maryland → Every provider in Gaithersburg →
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Common questions
What is Douglas L. Greenspan, DDS's NPI number?
Douglas L. Greenspan, DDS's National Provider Identifier (NPI) is 1790797306, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas L. Greenspan, DDS located?
The NPPES record lists a practice address at 213 Frederick Avenue, Gaithersburg, MD, 20877. Phone: (301) 948-5858. Providers update this record themselves, so call before visiting.
How can I verify Douglas L. Greenspan, DDS's license?
NPPES lists Maryland license number 7841, 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.