Ellen L. Koehler, CRNP
Nurse Practitioner · Baltimore, MD
Ellen L. Koehler, CRNP is a nurse practitioner with a practice address in Baltimore, Maryland, and NPI 1700831542, issued on May 23, 2006. Check the license (Maryland R145838, 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
- Ellen L. Koehler
- Credential
- CRNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- R145838 MD
Self-reported in NPPES; status is on the state search - Practice location
- 22 S Greene St, Baltimore, MD 21201
- Phone
- (410) 328-6598
- Enumerated
- May 23, 2006
- Record last updated
- Feb 1, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (410) 328-3577
- Medicaid ID
- 404708700 MD
- Entity
- Type 1 · individual
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Verify Ellen L. Koehler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R145838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Ellen L. Koehler among 1,248 nurse practitioner records in Maryland
Ellen L. Koehler, CRNP is one of 1,248 nurse practitioner records with a practice address in Maryland. 68% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 74% newer
- In a Medicare fileNo · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 52% of these records are
- Record last updated2012 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
366 nurse practitioner records list a practice address in Baltimore
They are 366 of the 35,183 NPPES records with a practice address in Baltimore, and 1,248 nurse practitioner records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,248 in Maryland → Every provider in Baltimore → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
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- Martha Francis, CRNPBaltimore, MD 212011952348922
- Rachel Lebowitz, CRNPBaltimore, MD 212011982659736
- Lesley Mathews, MSN FNPCBaltimore, MD 212011295724227
- Kim Reck, CRNPBaltimore, MD 212011912953902
- Darbi Robinson, CRNPBaltimore, MD 212011568459733
- Anne Rosenberg, CRNPBaltimore, MD 212011568463396
Common questions
What is Ellen L. Koehler, CRNP's NPI number?
Ellen L. Koehler, CRNP's National Provider Identifier (NPI) is 1700831542, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ellen L. Koehler, CRNP located?
The NPPES record lists a practice address at 22 S Greene St, Baltimore, MD, 21201. Phone: (410) 328-6598. Providers update this record themselves, so call before visiting.
How can I verify Ellen L. Koehler, CRNP's license?
NPPES lists Maryland license number R145838, 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.