Haley Louise Zimmerman, FNP-C
Registered Nurse · Pasadena, MD
Haley Louise Zimmerman, FNP-C is a registered nurse with a practice address in Pasadena, Maryland, and NPI 1770276057, issued on Jun 1, 2023. Check the license (Maryland R220155, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Haley Louise Zimmerman
- Credential
- FNP-C
- Primary taxonomy
- Registered Nurse 163W00000X
- License number
- R220155 MD
Self-reported in NPPES; status is on the state search - Practice location
- 8109 Ritchie Hwy Ste 100, Pasadena, MD 21122
- Phone
- (443) 270-8600
- Enumerated
- Jun 1, 2023
- Record last updated
- Jul 7, 2024
- Medicare enrollment
- Enrolled (PECOS I20231007000825); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2023
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest registered nurse records → All 2,453 in Maryland → Look up another NPI →
Also registered at 8109 Ritchie Hwy Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dominique Griffin, PA-CPhysician Assistant1518706167
- Courtney SchockPhysician Assistant1538821087
Verify Haley Louise Zimmerman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R220155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average registered nurse in 2024
2,083 Medicare Part D claims for 253 beneficiaries, against an average of 678 among the 694 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium137 claims
- Lisinopril97 claims
- Amlodipine Besylate93 claims
- Levothyroxine Sodium61 claims
- Gabapentin55 claims
- Metoprolol Succinate50 claims
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.
Industry payments in 2024: $139.94
7 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 1,191 providers of this specialty with any payment received $505.98 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Luminis Health Medical Group, LLCPasadena, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Haley Louise Zimmerman among 2,453 registered nurse records in Maryland
Haley Louise Zimmerman, FNP-C is one of 2,453 registered nurse records with a practice address in Maryland. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 75% of them.
- NPI issued2023 · 75% of these records are older, 19% newer
- In a Medicare fileYes · 2% of these records are
- In the CMS Doctors and Clinicians fileYes · 1% of these records are
- Graduated2023 · median 2022 among the 36 with a school on file
- Record last updated2024 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
13 registered nurse records list a practice address in Pasadena
They are 13 of the 537 NPPES records with a practice address in Pasadena, and 2,453 registered nurse records in Maryland.
All 2,453 in Maryland → Every provider in Pasadena → Registered Nurse nationwide →
The 8 registered nurse records with the nearest ZIP codes
- Christine Coursey, RNPasadena, MD 211221770469918
- Carly Fielding, RNPasadena, MD 211221598530925
- Kristy Frashure, RNPasadena, MD 211221730307067
- Hope JacksonPasadena, MD 211221497537906
- Suja Joby, MSN, RNPasadena, MD 211221013727916
- William Maurice, RNPasadena, MD 211221497428858
- Kathy Mouncey, R.N.Pasadena, MD 211221518180249
- Wazaino MsimbwaPasadena, MD 211221477372647
Common questions
What is Haley Louise Zimmerman, FNP-C's NPI number?
Haley Louise Zimmerman, FNP-C's National Provider Identifier (NPI) is 1770276057, issued on Jun 1, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Haley Louise Zimmerman, FNP-C located?
The NPPES record lists a practice address at 8109 Ritchie Hwy Ste 100, Pasadena, MD, 21122. Phone: (443) 270-8600. Providers update this record themselves, so call before visiting.
How can I verify Haley Louise Zimmerman, FNP-C's license?
NPPES lists Maryland license number R220155, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Haley Louise Zimmerman, FNP-C prescribe under Medicare Part D?
In 2024, Haley Louise Zimmerman, FNP-C had 2,083 Medicare Part D claims for 253 beneficiaries; the average among registered nurse prescribers was 678. 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.