Laura Warnock Koo, CRNP
Family Nurse Practitioner · Baltimore, MD
Laura Warnock Koo, CRNP is a family nurse practitioner with a practice address in Baltimore, Maryland, and NPI 1184833212, issued on May 22, 2007. Check the license (Maryland R126745, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Laura Warnock Koo
- Credential
- CRNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- R126745 MD
Self-reported in NPPES; status is on the state search - Practice location
- 830 W 40TH St, Baltimore, MD 21211
- Phone
- (410) 243-7284
- Enumerated
- May 22, 2007
- Record last updated
- May 29, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (410) 243-5804
- Medicare enrollment
- Enrolled (PECOS I20121005000107); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 4,124 in Maryland → Look up another NPI →
Also registered at 830 W 40TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Elizabeth RyanOccupational Therapy Assistant1154736858
Verify Laura Warnock Koo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R126745Check 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
- Medstar Medical Group II LLCBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Laura Warnock Koo among 4,124 family nurse practitioner records in Maryland
Laura Warnock Koo, CRNP is one of 4,124 family nurse practitioner records with a practice address in Maryland. 74% 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 7% of them.
- NPI issued2007 · 7% of these records are older, 89% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2000 · median 2019 among the 2,370 with a school on file
- Record last updated2013 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
712 family nurse practitioner records list a practice address in Baltimore
They are 712 of the 35,183 NPPES records with a practice address in Baltimore, and 4,124 family nurse practitioner records in Maryland.
All 4,124 in Maryland → Every provider in Baltimore → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Rica BanfieldBaltimore, MD 212111194281451
- Laura Garcia, MSN CRNPBaltimore, MD 212111316356215
- Rebecca Gum, CRNPBaltimore, MD 212111285137497
- Andrea Holzman, CRNPBaltimore, MD 212111760903173
- Lauren Houlday, NPBaltimore, MD 212111700168234
- Sherry Kalinski, CRNPBaltimore, MD 212111629885595
- Abbi LamparelliBaltimore, MD 212111255103172
- Molly RiceBaltimore, MD 212111871065441
Common questions
What is Laura Warnock Koo, CRNP's NPI number?
Laura Warnock Koo, CRNP's National Provider Identifier (NPI) is 1184833212, issued on May 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Laura Warnock Koo, CRNP located?
The NPPES record lists a practice address at 830 W 40TH St, Baltimore, MD, 21211. Phone: (410) 243-7284. Providers update this record themselves, so call before visiting.
How can I verify Laura Warnock Koo, CRNP's license?
NPPES lists Maryland license number R126745, 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.