Stephen Ferris
NPI 1164146619 · Physician Assistant · Baltimore, MD
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Ferris is a Physician Assistant provider in Baltimore, MD (NPI 1164146619).
Provider details
- NPI number
- 1164146619
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
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 tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
460 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 176 | $86 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 59 | $70 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 51 | $104 |
| X-Ray of Foot, Minimum of 3 Views73630 | 32 | $7 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 29 | $8 |
| X-Ray of Ankle, Minimum of 3 Views73610 | 28 | $8 |
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 |
|---|---|---|
| Ibuprofen | 37 | 28 |
| Naproxen | 23 | 18 |
| Oxycodone Hcl | 17 | 12 |
| Mupirocin | 12 | — |
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$155 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-09-28
- Last updated
- 2022-09-28
- Certified
- 2022-09-28
Frequently asked questions
- What is Stephen Ferris's NPI number?
- Stephen Ferris's National Provider Identifier (NPI) is 1164146619, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Ferris's specialty?
- Stephen Ferris is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephen Ferris located?
- Stephen Ferris's practice location on file with NPPES is 520 W Fayette St Ste 300, Baltimore, MD 21201-1756.
- What is Stephen Ferris's phone number?
- The practice phone number listed in the NPPES registry for Stephen Ferris is (410) 837-9379.
- Does Stephen Ferris accept Medicare?
- Stephen Ferris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Ferris's NPI active?
- Yes — Stephen Ferris's NPI (1164146619) is active in the NPPES registry as of the last update on 2022-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.