Erin Elizabeth Lock, ACNP-BC
Acute Care Nurse Practitioner · Baltimore, MD
Erin Elizabeth Lock, ACNP-BC is an acute care nurse practitioner with a practice address in Baltimore, Maryland, and NPI 1780986323, issued on Dec 2, 2010. Check the license (Maryland R197933, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erin Elizabeth Lock
- Credential
- ACNP-BC
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License numbers
- R197933 MD
209-008473 IL
Self-reported in NPPES; status is on the state search - Practice location
- 22 S Greene St,, Baltimore, MD 21201
- Phone
- (410) 328-6280
- Enumerated
- Dec 2, 2010
- Record last updated
- Jan 2, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (410) 328-2893
- Medicare enrollment
- Enrolled (PECOS I20201203001402); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 755 in Maryland → Look up another NPI →
Verify Erin Elizabeth Lock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R197933Check 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
- Meritus Medical Center IncHagerstown, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erin Elizabeth Lock among 755 acute care nurse practitioner records in Maryland
Erin Elizabeth Lock, ACNP-BC is one of 755 acute care nurse practitioner records with a practice address in Maryland. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 22% of them.
- NPI issued2010 · 22% of these records are older, 74% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2010 · median 2017 among the 494 with a school on file
- Record last updated2013 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
423 acute care nurse practitioner records list a practice address in Baltimore
They are 423 of the 35,183 NPPES records with a practice address in Baltimore, and 755 acute care nurse practitioner records in Maryland.
All 755 in Maryland → Every provider in Baltimore → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Michelle Agostini, NPBaltimore, MD 212011346467610
- Lynn Dees, CRNPBaltimore, MD 212011265412316
- P Frawley, ACNPBaltimore, MD 212011215147814
- Colleen Gaffney, CRNPBaltimore, MD 212011295957579
- T. Nicole Kelley, RN, MS, CRNPBaltimore, MD 212011932241981
- Lou-Ellen Lallier, CRNPBaltimore, MD 212011649480096
- Benjamin Laughton, CRNPBaltimore, MD 212011902016512
- Melinda Lebrun, CRNPBaltimore, MD 212011639395932
Common questions
What is Erin Elizabeth Lock, ACNP-BC's NPI number?
Erin Elizabeth Lock, ACNP-BC's National Provider Identifier (NPI) is 1780986323, issued on Dec 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Erin Elizabeth Lock, ACNP-BC located?
The NPPES record lists a practice address at 22 S Greene St,, Baltimore, MD, 21201. Phone: (410) 328-6280. Providers update this record themselves, so call before visiting.
How can I verify Erin Elizabeth Lock, ACNP-BC's license?
NPPES lists Maryland license number R197933, 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.