Joann Ott-Slenker, RD, LDN
Registered Dietitian · Lancaster, PA
Joann Ott-Slenker, RD, LDN is a registered dietitian with a practice address in Lancaster, Pennsylvania, and NPI 1871099390, issued on Apr 3, 2018. Check the license (Pennsylvania DN004719, as entered in NPPES) with the Pennsylvania board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joann Ott-Slenker
- Credential
- RD, LDN
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- DN004719 PA
Self-reported in NPPES; status is on the state search - Practice location
- 555 N. Duke Street, Lancaster, PA 17604
- Phone
- (717) 544-7791
- Enumerated
- Apr 3, 2018
- Record last updated
- May 8, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 555 N. Duke Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joann Ott-Slenker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license DN004719Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Registered Dietitian providers in Pennsylvania
There are 3,083 registered dietitian records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other registered dietitian records in Pennsylvania
- Andrea Abbe, LDNHershey, PA1366623795
- Danielle AbermanMalvern, PA1003272188
- Nora AbrahamHorsham, PA1346093614
- Christina Abriola, R.D.Pittsburgh, PA1356647507
- Melissa Accardi, MS, RD, LDNPittsburgh, PA1336768951
- Marie AceboLancaster, PA1053347757
- Jennifer Acevedo, RDAllentown, PA1538532882
- Emily Achey, MS, RDNewmanstown, PA1730724360
- Jami Ackerman, RDN LDNEnola, PA1790717924
- Rachel Ackley, RDN, LDNAllentown, PA1003589300
Common questions
What is Joann Ott-Slenker, RD, LDN's NPI number?
Joann Ott-Slenker, RD, LDN's National Provider Identifier (NPI) is 1871099390, issued on Apr 3, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Joann Ott-Slenker, RD, LDN located?
The NPPES record lists a practice address at 555 N. Duke Street, Lancaster, PA, 17604. Phone: (717) 544-7791. Providers update this record themselves, so call before visiting.
How can I verify Joann Ott-Slenker, RD, LDN's license?
NPPES lists Pennsylvania license number DN004719, as entered by the provider. Search the Pennsylvania 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.