Christopher Differding, PA-C
Physician Assistant · Spring Valley, IL
Christopher Differding, PA-C is a physician assistant with a practice address in Spring Valley, Illinois, and NPI 1295002715, issued on Nov 29, 2011. Check the license (Illinois 085.004245, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christopher Differding
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 085.004245 IL
Self-reported in NPPES; status is on the state search - Practice location
- 600 E 1St St, Spring Valley, IL 61362
- Phone
- (815) 664-2617
- Enumerated
- Nov 29, 2011
- Entity
- Type 1 · individual
Also registered at 600 E 1St St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Arkins, R.PH.Pharmacist1881724839
- Elizabeth Baker, MS, RD, LDNRegistered Dietitian1427307974
- Jessica Brown, RDRegistered Dietitian1245838176
- Marilyn Csernus, LD,CDE,MS,RDNutrition Education Nutritionist1093984932
- Geri Dew, R.D., LDNRegistered Dietitian1659609048
- Tamara Dunlap-Workman, PA-CPhysician Assistant1396811907
Verify Christopher Differding in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 085.004245Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
4.0 times the Medicare Part D claims of the average physician assistant in 2024
3,302 Medicare Part D claims for 932 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 12 claims were for opioids.
Most prescribed
- Tamsulosin Hcl810 claims
- Solifenacin Succinate264 claims
- Alfuzosin Hcl Er263 claims
- Myrbetriq237 claims
- Finasteride193 claims
- Nitrofurantoin159 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.
The practice group's Medicare quality score for 2023: 93.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
3 hospital and facility affiliations
- Illinois Urologic Health Surgeons SCOttawa, IL
- Pai Participant 27, PCOttawa, IL
- T4 Medical PLLCOttawa, IL
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
2 physician assistant records list a Spring Valley practice address
They are 2 of the 73 NPPES records with a Spring Valley practice address, and 4,550 physician assistant records in Illinois.
All 2 in Spring Valley → All 4,550 in Illinois → Every provider in Spring Valley →
Other physician assistant records in Illinois
- Brooke Aarhus, PA-CPark Ridge, IL1760985469
- Traci Aaron, PA-CChicago, IL1174510200
- Sana Abbasi, PACarol Stream, IL1831803295
- Susan Abbinanti, PA-CElk Grove Village, IL1679647358
- Katheryn Abbott, PASchaumburg, IL1356842082
- Noor Abdelrahman, PA-CChicago, IL1851012413
- Kazuko Abe, P.A.Chicago, IL1881840783
- Derrik AbellAnna, IL1821618471
- Jeanine Aberbook, PA-CChicago, IL1518664176
- Megan AboChicago, IL1306242318
Common questions
What is Christopher Differding, PA-C's NPI number?
Christopher Differding, PA-C's National Provider Identifier (NPI) is 1295002715, issued on Nov 29, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Differding, PA-C located?
The NPPES record lists a practice address at 600 E 1St St, Spring Valley, IL, 61362. Phone: (815) 664-2617. Providers update this record themselves, so call before visiting.
How can I verify Christopher Differding, PA-C's license?
NPPES lists Illinois license number 085.004245, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Christopher Differding, PA-C prescribe under Medicare Part D?
In 2024, Christopher Differding, PA-C had 3,302 Medicare Part D claims for 932 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
What is Christopher Differding, PA-C's Medicare quality score?
The 2023 MIPS final score is 93.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.