Karen Elizabeth Hollis, RD,LDN,CDE
Registered Dietitian · Easton, MD
Karen Elizabeth Hollis, RD,LDN,CDE is a registered dietitian with a practice address in Easton, Maryland, and NPI 1649296435, issued on Jul 14, 2006. Check the license (Maryland DO1177, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Elizabeth Hollis
- Credential
- RD,LDN,CDE
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- DO1177 MD
Self-reported in NPPES; status is on the state search - Practice location
- 219 S Washington St, Easton, MD 21601
- Phone
- (410) 822-1000
- Enumerated
- Jul 14, 2006
- Record last updated
- Aug 28, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (410) 822-5117
- Medicare enrollment
- Enrolled (PECOS I20040305000861); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest registered dietitian records → All 1,124 in Maryland → Look up another NPI →
Also registered at 219 S Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Erin Allan, MA, CCC-SLPSpeech-Language Pathologist1801054929
- Christine Allen, RD, LDRegistered Dietitian1164482238
- Abul Arifuddowla, MDHospitalist Physician1851559611
Verify Karen Elizabeth Hollis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license DO1177Check 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
- University OF Maryland Community Medical Group IncEaston, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karen Elizabeth Hollis among 1,124 registered dietitian records in Maryland
Karen Elizabeth Hollis, RD,LDN,CDE is one of 1,124 registered dietitian records with a practice address in Maryland. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 89% newer
- In a Medicare fileYes · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 13% of these records are
- Graduated1979 · median 2015 among the 143 with a school on file
- Record last updated2013 · 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 133V00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 registered dietitian records list a practice address in Easton
They are 13 of the 928 NPPES records with a practice address in Easton, and 1,124 registered dietitian records in Maryland.
All 1,124 in Maryland → Every provider in Easton → Registered Dietitian nationwide →
The 8 registered dietitian records with the nearest ZIP codes
- Christine Allen, RD, LDEaston, MD 216011164482238
- Samantha Ballard, RDEaston, MD 216011184207805
- Arin Calderwood, RDEaston, MD 216011487204913
- Katherine Ewers, RD, LDEaston, MD 216011982664108
- Katherine Hottel, MS, RD, LDEaston, MD 216011154984821
- Kimberly Hyatt, RD, LDNEaston, MD 216011740562503
- Kristen KohlerEaston, MD 216011558794479
- Holly Patronik, RD, LDEaston, MD 216011215997390
Common questions
What is Karen Elizabeth Hollis, RD,LDN,CDE's NPI number?
Karen Elizabeth Hollis, RD,LDN,CDE's National Provider Identifier (NPI) is 1649296435, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen Elizabeth Hollis, RD,LDN,CDE located?
The NPPES record lists a practice address at 219 S Washington St, Easton, MD, 21601. Phone: (410) 822-1000. Providers update this record themselves, so call before visiting.
How can I verify Karen Elizabeth Hollis, RD,LDN,CDE's license?
NPPES lists Maryland license number DO1177, 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.