Charles Ruby
Clinical Psychologist · Waldorf, MD
Charles Ruby is a clinical psychologist with a practice address in Waldorf, Maryland, and NPI 1649310715, issued on Feb 7, 2007. Check the license (Maryland 3372, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Charles Ruby
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 3372 MD
Self-reported in NPPES; status is on the state search - Practice location
- 603 Post Office RD, Waldorf, MD 20602
- Phone
- (301) 705-7593
- Enumerated
- Feb 7, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (301) 705-8753
- Medicare enrollment
- Enrolled (PECOS I20120103000043); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 1,499 in Maryland → Look up another NPI →
Also registered at 603 Post Office RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charles Ruby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 3372Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Pinnacle Center For Mental Health And Human Relations LLCWaldorf, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Ruby among 1,499 clinical psychologist records in Maryland
Charles Ruby 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. Its NPI, issued in 2007, is newer than 19% of them.
- NPI issued2007 · 19% of these records are older, 61% newer
- In a Medicare fileYes · 10% of these records are
- In the CMS Doctors and Clinicians fileYes · 18% of these records are
- Graduated1995 · median 2003 among the 265 with a school on file
- Record last updated2007 · 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).
Clinical Psychologist providers in Maryland
There are 1,499 clinical psychologist records in Maryland.
All 1,499 in Maryland → Every provider in Waldorf → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Anjanette BluntWaldorf, MD 206021912612748
- Dominique Lawson, PSYDWaldorf, MD 206021043942931
- Lakitha Owens, PHDWaldorf, MD 206021467079889
- Harriet YevzeroffWaldorf, MD 206021346380417
- Celena Bryant, PSY DWaldorf, MD 206031043652464
- Alani Mason-Callaway, PSYDWaldorf, MD 206031518764133
- Tywanda McLaurin-Jones, PH.D.Waldorf, MD 206031316484488
- Michael KruepkeCharlotte Hall, MD 206221427643717
Common questions
What is Charles Ruby's NPI number?
Charles Ruby's National Provider Identifier (NPI) is 1649310715, issued on Feb 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Charles Ruby located?
The NPPES record lists a practice address at 603 Post Office RD, Waldorf, MD, 20602. Phone: (301) 705-7593. Providers update this record themselves, so call before visiting.
How can I verify Charles Ruby's license?
NPPES lists Maryland license number 3372, 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. 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.