Stephen Killian, PA-C
NPI 1841231826 · Physician Assistant · Princeton, NJ
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Killian, PA-C is a Physician Assistant provider in Princeton, NJ (NPI 1841231826).
Provider details
- NPI number
- 1841231826
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- MP00082200 (NJ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
852 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 212 | $82 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 136 | $63 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 112 | $52 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 81 | $102 |
| X-Ray of Knee, 3 Views73562 | 50 | $12 |
| X-Ray of Knee, 4 Or More Views73564 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 44 | 35 |
| Methylprednisolone | 30 | 28 |
| Meloxicam | 16 | — |
| Cyclobenzaprine Hcl | 12 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-09
- Last updated
- 2019-10-02
Frequently asked questions
- What is Stephen Killian's NPI number?
- Stephen Killian's National Provider Identifier (NPI) is 1841231826, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Killian's specialty?
- Stephen Killian is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephen Killian located?
- Stephen Killian's practice location on file with NPPES is 325 Princeton Ave, Princeton, NJ 08540-1617.
- What is Stephen Killian's phone number?
- The practice phone number listed in the NPPES registry for Stephen Killian is (609) 924-8131.
- Does Stephen Killian accept Medicare?
- Stephen Killian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Killian's NPI active?
- Yes — Stephen Killian's NPI (1841231826) is active in the NPPES registry as of the last update on 2019-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.