Bret Joseph Grebowsky, PT, DPT
Physical Therapist · Rockville, MD
Bret Joseph Grebowsky, PT, DPT is a physical therapist with a practice address in Rockville, Maryland, and NPI 1174702062, issued on Oct 29, 2007. Check the license (Maryland 18894, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Bret Joseph Grebowsky
- Credential
- PT, DPT
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- 18894 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9420 Key West Ave, Rockville, MD 20850
- Phone
- (301) 545-1677
- Enumerated
- Oct 29, 2007
- Record last updated
- Sep 17, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (301) 545-1675
- Medicare enrollment
- Enrolled (PECOS I20100921001382); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 6,177 in Maryland → Look up another NPI →
Also registered at 9420 Key West Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ebony Carsonpinkney, DPTPhysical Therapist1710298682
- Victor Chang, DPTPhysical Therapist1588772347
- Christopher CheungPhysical Therapist1033535877
- Judy DatocPhysical Therapist1285047308
- Jonathan Elias, MDGynecology Physician1871578112
- Andrea EsparzaMental Health Counselor1053117796
Verify Bret Joseph Grebowsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 18894Check 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
- Proactive Hand And Physical TherapyRockville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bret Joseph Grebowsky among 6,177 physical therapist records in Maryland
Bret Joseph Grebowsky, PT, DPT is one of 6,177 physical therapist records with a practice address in Maryland. 36% 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 15% of them.
- NPI issued2007 · 15% of these records are older, 73% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1997 · median 2015 among the 2,359 with a school on file
- Record last updated2012 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
273 physical therapist records list a practice address in Rockville
They are 273 of the 14,353 NPPES records with a practice address in Rockville, and 6,177 physical therapist records in Maryland.
All 6,177 in Maryland → Every provider in Rockville → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Lydia Badra, MSPTRockville, MD 208501316905490
- Amber Carpen, P.T.Rockville, MD 208501245346360
- Victor Chang, DPTRockville, MD 208501588772347
- Grettel Collins, P.T.Rockville, MD 208501649297664
- Joshua Costa, PT DPTRockville, MD 208501295700342
- Stacey Cruse, PT, DPT, ATCRockville, MD 208501396788154
- Jennifer Gillott, M.S.P.T.Rockville, MD 208501336227586
- Priyanka KholeRockville, MD 208501962581785
Common questions
What is Bret Joseph Grebowsky, PT, DPT's NPI number?
Bret Joseph Grebowsky, PT, DPT's National Provider Identifier (NPI) is 1174702062, issued on Oct 29, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Bret Joseph Grebowsky, PT, DPT located?
The NPPES record lists a practice address at 9420 Key West Ave, Rockville, MD, 20850. Phone: (301) 545-1677. Providers update this record themselves, so call before visiting.
How can I verify Bret Joseph Grebowsky, PT, DPT's license?
NPPES lists Maryland license number 18894, 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.