John Bak, CRNP
Nurse Practitioner · Danville, PA
John Bak, CRNP is a nurse practitioner with a practice address in Danville, Pennsylvania, and NPI 1235770702, issued on Oct 4, 2019. Check the license (Pennsylvania SP020925, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Bak
- Credential
- CRNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- SP020925 PA
Self-reported in NPPES; status is on the state search - Practice location
- 100 N Academy Ave, Danville, PA 17822
- Phone
- (570) 271-6523
- Enumerated
- Oct 4, 2019
- Record last updated
- Feb 3, 2026
- Fax
- (570) 271-8056
- Medicare enrollment
- Enrolled (PECOS I20191218002016); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,916 in Pennsylvania → Look up another NPI →
Also registered at 100 N Academy Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Bak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license SP020925Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% more Medicare Part D claims than the average nurse practitioner in 2024
1,817 Medicare Part D claims for 342 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Spironolactone279 claims
- Metoprolol Succinate223 claims
- Furosemide218 claims
- Torsemide139 claims
- Atorvastatin Calcium133 claims
- Lisinopril101 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: $113.92
1 payment: food and beverage; the largest payer was Abbott Laboratories. The 38,884 providers of this specialty with any payment received $791.64 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 3 group practices
- Evangelical Medical Services OrganizationLewisburg, PA
- Geisinger ClinicDanville, PA
- Geisinger-HM Joint Venture LLCMuncy, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Bak among 3,916 nurse practitioner records in Pennsylvania
John Bak, CRNP is one of 3,916 nurse practitioner records with a practice address in Pennsylvania. 75% 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 61% of them.
- NPI issued2019 · 61% of these records are older, 34% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2018 among the 2,360 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
135 nurse practitioner records list a practice address in Danville
They are 135 of the 3,116 NPPES records with a practice address in Danville, and 3,916 nurse practitioner records in Pennsylvania.
All 3,916 in Pennsylvania → Every provider in Danville → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Christina Appleman, CRNPDanville, PA 178221922072107
- Holly Billet, CRNPDanville, PA 178221679548333
- Sheri Fornwalt, CRNPDanville, PA 178221861460826
- Linda Heckman, CRNPDanville, PA 178221124097530
- Jennifer Herrold, CRNPDanville, PA 178221578522769
- Dorothy Hoy, CRNPDanville, PA 178221356300446
- Paula Jacobs, CRNPDanville, PA 178221356300933
- Cynthia Kline, CRNPDanville, PA 178221043279326
Common questions
What is John Bak, CRNP's NPI number?
John Bak, CRNP's National Provider Identifier (NPI) is 1235770702, issued on Oct 4, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John Bak, CRNP located?
The NPPES record lists a practice address at 100 N Academy Ave, Danville, PA, 17822. Phone: (570) 271-6523. Providers update this record themselves, so call before visiting.
How can I verify John Bak, CRNP's license?
NPPES lists Pennsylvania license number SP020925, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does John Bak, CRNP prescribe under Medicare Part D?
In 2024, John Bak, CRNP had 1,817 Medicare Part D claims for 342 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.