Christina Bax
Dermatology Physician · Philadelphia, PA
Christina Bax is a dermatology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1659959021, issued on Mar 29, 2021. Check the license on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Christina Bax
- Primary taxonomy
- Dermatology Physician 207N00000X
- License numbers
- D0104740 MD
MD600004999 DC
Self-reported in NPPES; status is on the state search - Practice location
- 800 Spruce St, Philadelphia, PA 19107
- Phone
- (240) 593-9033
- Enumerated
- Mar 29, 2021
- Record last updated
- Dec 19, 2025
- Medicare enrollment
- Enrolled (PECOS I20260102003138); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 681 in Pennsylvania → Look up another NPI →
Also registered at 800 Spruce St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmad Abdalla, MDInternal Medicine Physician1730981127
- Annabelle Abdo, DOObstetrics & Gynecology Physician1518583665
- Omar AbdounStudent in an Organized Health Care Education/Training Program1669260279
- Monica Aber, CRNPAcute Care Nurse Practitioner1922876820
- Jennifer Acquaviva, MPTSpecialist1346366820
- Sarah Adams, DOStudent in an Organized Health Care Education/Training Program1184327108
Verify Christina Bax in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average dermatology physician in 2024
103 Medicare Part D claims for 43 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of 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 2 group practices
- Johns Hopkins UniversityWashington, DC
- Johns Hopkins UniversityWashington, DC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christina Bax among 681 dermatology physician records in Pennsylvania
Christina Bax is one of 681 dermatology physician records with a practice address in Pennsylvania. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2021 · median 2007 among the 485 with a school on file
- Record last updated2025 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Pennsylvania
There are 681 dermatology physician records in Pennsylvania.
All 681 in Pennsylvania → Every provider in Philadelphia → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Anthony Benedetto, D.O.Philadelphia, PA 191071831154871
- Kristin Cam, MDPhiladelphia, PA 191071295927945
- Christna Chung, MDPhiladelphia, PA 191071538103635
- Glen Crawford, MDPhiladelphia, PA 191071598780165
- Carrie Ann Cusack, M.D.Philadelphia, PA 191071649238775
- Paul Gross, MDPhiladelphia, PA 191071558360560
- Wei Hsu, M.D.Philadelphia, PA 191071497713556
- Patrice Hyde, M.DPhiladelphia, PA 191071508887167
Common questions
What is Christina Bax's NPI number?
Christina Bax's National Provider Identifier (NPI) is 1659959021, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Christina Bax located?
The NPPES record lists a practice address at 800 Spruce St, Philadelphia, PA, 19107. Phone: (240) 593-9033. Providers update this record themselves, so call before visiting.
How can I verify Christina Bax's license?
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 Christina Bax prescribe under Medicare Part D?
In 2024, Christina Bax had 103 Medicare Part D claims for 43 beneficiaries; the average among dermatology physician prescribers was 797. 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.