NPPES file of Aug 9, 2026

Sierra Hollenbach, CRNP

Acute Care Nurse Practitioner · Lancaster, PA

Sierra Hollenbach, CRNP is an acute care nurse practitioner with a practice address in Lancaster, Pennsylvania, and NPI 1841072584, issued on Oct 17, 2023. Check the license (Pennsylvania SP028359, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841072584
Name
Sierra Hollenbach
Credential
CRNP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
SP028359 PA
Self-reported in NPPES; status is on the state search
Practice location
2160 State RD, Lancaster, PA 17601
Phone
(223) 287-9000
Enumerated
Oct 17, 2023
Record last updated
Oct 17, 2023
Medicare enrollment
Enrolled (PECOS I20231106001159); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2160 State RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jerri BarnettEmergency Registered Nurse1235008889
  2. Erin Cruise, PA-CMedical Physician Assistant1043926926
  3. Kailey DegezelleRegistered Nurse1558250845
  4. Addisyn DicksonRegistered Nurse1902735889
  5. Sai Doppalapudi, MDPulmonary Disease Physician1396257531
  6. Michele Fiegl, CRNPAcute Care Nurse Practitioner1114793957

Verify Sierra Hollenbach in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license SP028359
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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56% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024

262 Medicare Part D claims for 131 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Sierra Hollenbach262
  2. Specialty average594

Most prescribed

  1. Cefpodoxime Proxetil28 claims
  2. Prednisone18 claims
  3. Eliquis15 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.

Bills Medicare through one group practice

  1. Penn State Health Medical Group LLCLancaster, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sierra Hollenbach among 1,283 acute care nurse practitioner records in Pennsylvania

Sierra Hollenbach, CRNP is one of 1,283 acute care nurse practitioner records with a practice address in Pennsylvania. 80% 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 76% of them.

  • NPI issued2023 · 76% of these records are older, 16% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2023 · median 2019 among the 841 with a school on file
  • Record last updated2023 · 47% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in Pennsylvania

There are 1,283 acute care nurse practitioner records in Pennsylvania.

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Justina AnthonyLancaster, PA 176011235838152
  2. Julie Callender, CRNPLancaster, PA 176011518949635
  3. Michele Fiegl, CRNPLancaster, PA 176011114793957
  4. Amanda Gaziano, NPLancaster, PA 176011346871506
  5. Melissa Kretz, CRNPLancaster, PA 176011841500048
  6. Allison Sileo, CRNPLancaster, PA 176011437500683
  7. Douglas Agard, CRNPLancaster, PA 176021205308400
  8. Erin Cornman, MSN, CRNPLancaster, PA 176021508402876

Common questions

What is Sierra Hollenbach, CRNP's NPI number?

Sierra Hollenbach, CRNP's National Provider Identifier (NPI) is 1841072584, issued on Oct 17, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Sierra Hollenbach, CRNP located?

The NPPES record lists a practice address at 2160 State RD, Lancaster, PA, 17601. Phone: (223) 287-9000. Providers update this record themselves, so call before visiting.

How can I verify Sierra Hollenbach, CRNP's license?

NPPES lists Pennsylvania license number SP028359, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Sierra Hollenbach, CRNP prescribe under Medicare Part D?

In 2024, Sierra Hollenbach, CRNP had 262 Medicare Part D claims for 131 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.