Derek Liang, D.O.
Obstetrics & Gynecology Physician · New Freedom, PA
Derek Liang, D.O. is an obstetrics & gynecology physician with a practice address in New Freedom, Pennsylvania, and NPI 1093000663, issued on Jun 13, 2011. Check the license (Pennsylvania OS019509, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Derek Liang
- Credential
- D.O.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- OS019509 PA
261588 NY
Self-reported in NPPES; status is on the state search - Practice location
- 13515 Wolfe RD, New Freedom, PA 17349
- Phone
- (717) 812-2540
- Enumerated
- Jun 13, 2011
- Record last updated
- Jan 27, 2025
- Fax
- (717) 715-1310
- Medicaid ID
- 03347573 NY
- Medicare enrollment
- Enrolled (PECOS I20181009003233); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,974 in Pennsylvania → Look up another NPI →
Also registered at 13515 Wolfe RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amara Burney, M.DFamily Medicine Physician1326220286
- Wendy Golden, WHNPWomen's Health Nurse Practitioner1386073419
- Jacquelynn Johnson, CNMAdvanced Practice Midwife1831860162
- Mary Keperling, DOObstetrics & Gynecology Physician1134151590
- Nicholas Lumsden, M.D.Family Medicine Physician1154583599
- Jessica Mendez, CRNPNurse Practitioner1922559418
Verify Derek Liang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS019509Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
84 Medicare Part D claims for 29 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Clotrimazole-Betamethasone19 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: $14.45
1 payment: food and beverage; the largest payer was Henry Schein, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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 2 group practices
- Wellspan Medical GroupYork, PA
- York HospitalYork, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek Liang among 1,974 obstetrics & gynecology physician records in Pennsylvania
Derek Liang, D.O. is one of 1,974 obstetrics & gynecology physician 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 2011, is newer than 61% of them.
- NPI issued2011 · 61% of these records are older, 37% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2007 · median 2007 among the 1,176 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 obstetrics & gynecology physician records list a practice address in New Freedom
They are 3 of the 56 NPPES records with a practice address in New Freedom, and 1,974 obstetrics & gynecology physician records in Pennsylvania.
All 1,974 in Pennsylvania → Every provider in New Freedom → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Mary Keperling, DONew Freedom, PA 173491134151590
- Lauren Smith-Leed, M.D.New Freedom, PA 173491770725814
- Chelsea Marks, D.O.Hanover, PA 173311023371754
- Ben Montgomery, MDHanover, PA 173311255328076
- Brandi Musselman, MDHanover, PA 173311902037179
- Stephen Naymick, D.O.Hanover, PA 173311962481580
- Bezaye TeshomeHanover, PA 173311508506148
- Jessica Tocks, D.O.Hanover, PA 173311427375633
Common questions
What is Derek Liang, D.O.'s NPI number?
Derek Liang, D.O.'s National Provider Identifier (NPI) is 1093000663, issued on Jun 13, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Derek Liang, D.O. located?
The NPPES record lists a practice address at 13515 Wolfe RD, New Freedom, PA, 17349. Phone: (717) 812-2540. Providers update this record themselves, so call before visiting.
How can I verify Derek Liang, D.O.'s license?
NPPES lists Pennsylvania license number OS019509, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Derek Liang, D.O. prescribe under Medicare Part D?
In 2024, Derek Liang, D.O. had 84 Medicare Part D claims for 29 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.