Marianne L. Hiles, MSN, RN, APRN-CNS
Perinatal Clinical Nurse Specialist · Frederick, MD
Marianne L. Hiles, MSN, RN, APRN-CNS is a perinatal clinical nurse specialist with a practice address in Frederick, Maryland, and NPI 1356949788, issued on Oct 16, 2020. Check the license (Maryland CS00020, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marianne L. Hiles
- Credential
- MSN, RN, APRN-CNS
- Primary taxonomy
- Perinatal Clinical Nurse Specialist 364SP1700X
- License number
- CS00020 MD
Self-reported in NPPES; status is on the state search - Practice location
- 400 W 7TH St, Frederick, MD 21701
- Phone
- (240) 566-3312
- Enumerated
- Oct 16, 2020
- Record last updated
- Oct 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
All 1 in Maryland → Look up another NPI →
Also registered at 400 W 7TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jan Abramczuk, MDAnatomic Pathology & Clinical Pathology Physician1750301719
- Esther AdejumoPhysician Assistant1194533109
- Charleen Anani, PHARMDPharmacist1619842580
- James Ansell, MDEmergency Medicine Physician1982354320
- Mustafa AzimiAcute Care Nurse Practitioner1568064046
- Justin BarnettEmergency Medicine Physician1447741863
Verify Marianne L. Hiles in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license CS00020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $90.21
1 payment: food and beverage; the largest payer was Stryker Corporation. The 7 providers of this specialty with any payment received $114.54 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.
Perinatal Clinical Nurse Specialist providers in Maryland
There are 1 perinatal clinical nurse specialist records in Maryland.
All 1 in Maryland → Every provider in Frederick → Perinatal Clinical Nurse Specialist nationwide →
Common questions
What is Marianne L. Hiles, MSN, RN, APRN-CNS's NPI number?
Marianne L. Hiles, MSN, RN, APRN-CNS's National Provider Identifier (NPI) is 1356949788, issued on Oct 16, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Marianne L. Hiles, MSN, RN, APRN-CNS located?
The NPPES record lists a practice address at 400 W 7TH St, Frederick, MD, 21701. Phone: (240) 566-3312. Providers update this record themselves, so call before visiting.
How can I verify Marianne L. Hiles, MSN, RN, APRN-CNS's license?
NPPES lists Maryland license number CS00020, 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.