Heather Lyle Cassidy, PSYD
Clinical Psychologist · Silver Spring, MD
Heather Lyle Cassidy, PSYD is a clinical psychologist with a practice address in Silver Spring, Maryland, and NPI 1427098961, issued on Jun 6, 2006. Check the license (Maryland 04180, 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
- Heather Lyle Cassidy
- Credential
- PSYD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License numbers
- 04180 MD
PSY1000359 DC
Self-reported in NPPES; status is on the state search - Practice location
- 8700 Georgia Ave Ste 305, Silver Spring, MD 20910
- Phone
- (202) 251-5197
- Enumerated
- Jun 6, 2006
- Record last updated
- Dec 30, 2022
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 1,499 in Maryland → Look up another NPI →
Verify Heather Lyle Cassidy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 04180Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Heather Lyle Cassidy among 1,499 clinical psychologist records in Maryland
Heather Lyle Cassidy, PSYD is one of 1,499 clinical psychologist records with a practice address in Maryland. 10% 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 81% newer
- In a Medicare fileNo · 10% of these records are
- In the CMS Doctors and Clinicians fileNo · 18% of these records are
- Record last updated2022 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
89 clinical psychologist records list a practice address in Silver Spring
They are 89 of the 6,531 NPPES records with a practice address in Silver Spring, and 1,499 clinical psychologist records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,499 in Maryland → Every provider in Silver Spring → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Michael Bulger, PH.D.Silver Spring, MD 209101447390562
- Carole Giunta, PH.D.Silver Spring, MD 209101497883003
- Elizabeth Maury, PH.D.Silver Spring, MD 209101780782433
- Jennifer McCartney, PSY.D.Silver Spring, MD 209101083796338
- Mavis Milne, PH.D.Silver Spring, MD 209101366574287
- Cynthia Post, PHDSilver Spring, MD 209101518979970
- David Rose, PH.D.Silver Spring, MD 209101710005038
- Ivette Sanchez-Carbo, PH.DSilver Spring, MD 209101063490662
Common questions
What is Heather Lyle Cassidy, PSYD's NPI number?
Heather Lyle Cassidy, PSYD's National Provider Identifier (NPI) is 1427098961, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Heather Lyle Cassidy, PSYD located?
The NPPES record lists a practice address at 8700 Georgia Ave Ste 305, Silver Spring, MD, 20910. Phone: (202) 251-5197. Providers update this record themselves, so call before visiting.
How can I verify Heather Lyle Cassidy, PSYD's license?
NPPES lists Maryland license number 04180, 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.