April Lynn Karczmarek, DNP
Acute Care Nurse Practitioner · Bel Air, MD
April Lynn Karczmarek, DNP is an acute care nurse practitioner with a practice address in Bel Air, Maryland, and NPI 1831731652, issued on Oct 14, 2019. Check the license (Maryland R158499, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- April Lynn Karczmarek
- Credential
- DNP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- R158499 MD
Self-reported in NPPES; status is on the state search - Practice location
- 500 Upper Chesapeake Drive, Bel Air, MD 21014
- Phone
- (443) 643-1000
- Enumerated
- Oct 14, 2019
- Record last updated
- Oct 14, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200306001307); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 755 in Maryland → Look up another NPI →
Also registered at 500 Upper Chesapeake Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Nold, M.D.Emergency Medicine Physician1386635043
- Jeffrey Szramka, CRNACertified Registered Nurse Anesthetist1225335102
Verify April Lynn Karczmarek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R158499Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
63 Medicare Part D claims for 30 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 3 group practices
- Adfinitas Health AT Upper Chesapeake Aberdeen LLCAberdeen, MD
- Adfinitas Health AT Upper Chesapeake LLCBel Air, MD
- Johns Hopkins UniversityBaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
April Lynn Karczmarek among 755 acute care nurse practitioner records in Maryland
April Lynn Karczmarek, DNP 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 2019, is newer than 59% of them.
- NPI issued2019 · 59% of these records are older, 35% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2019 · median 2017 among the 494 with a school on file
- Record last updated2019 · 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).
25 acute care nurse practitioner records list a practice address in Bel Air
They are 25 of the 1,945 NPPES records with a practice address in Bel Air, and 755 acute care nurse practitioner records in Maryland.
All 755 in Maryland → Every provider in Bel Air → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Amanda Balzer-CostinBel Air, MD 210141740619469
- Sharon Campbell, CRNPBel Air, MD 210141093019945
- Rashidah Chisolm, CRNPBel Air, MD 210141033605621
- Caitlin Donis, ACNPBel Air, MD 210141477956555
- Barbara Donithan, AG-ACNP- BCBel Air, MD 210141346609161
- Larry Hilferding, CRNPBel Air, MD 210141386829737
- Laura Lewis, RN, MSN, ACNPBel Air, MD 210141760773881
- Ayo Mandi, CRNPBel Air, MD 210141174851422
Common questions
What is April Lynn Karczmarek, DNP's NPI number?
April Lynn Karczmarek, DNP's National Provider Identifier (NPI) is 1831731652, issued on Oct 14, 2019. An NPI identifies a provider in billing; it is not a license.
Where is April Lynn Karczmarek, DNP located?
The NPPES record lists a practice address at 500 Upper Chesapeake Drive, Bel Air, MD, 21014. Phone: (443) 643-1000. Providers update this record themselves, so call before visiting.
How can I verify April Lynn Karczmarek, DNP's license?
NPPES lists Maryland license number R158499, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does April Lynn Karczmarek, DNP prescribe under Medicare Part D?
In 2024, April Lynn Karczmarek, DNP had 63 Medicare Part D claims for 30 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions 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.