Tricia Royer, DO
NPI 1649472978 · Infectious Disease Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tricia Royer, DO is a Infectious Disease Physician provider in Philadelphia, PA (NPI 1649472978).
Provider details
- NPI number
- 1649472978
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 5101017189 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
380 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 190 | $119 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 104 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 46 | $174 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 40 | $129 |
Typical Medicare-allowed amounts for these services range $77–$174 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Ampicillin Sod/Sulbactam Sodbrand: Ampicillin-Sulbactam | 25 |
| 0.9 % Sodium Chloridebrand: Sodium Chloride | 16 |
| Doxycycline Monohydrate | 13 |
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
Additional practice locations (3)
- 111 S 11th StPhiladelphia, PA 19107-4824Phone: (215) 955-6000
- 2301 S Broad StPhiladelphia, PA 19148-3542Phone: (215) 952-9100
- 909 Walnut StPhiladelphia, PA 19107-5211Phone: (215) 955-6000
Registry dates
- Enumerated
- 2007-05-31
- Last updated
- 2018-12-06
Frequently asked questions
- What is Tricia Royer's NPI number?
- Tricia Royer's National Provider Identifier (NPI) is 1649472978, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tricia Royer's specialty?
- Tricia Royer is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Tricia Royer located?
- Tricia Royer's practice location on file with NPPES is 1015 Chestnut St Ste 1020, Philadelphia, PA 19107-4310.
- What is Tricia Royer's phone number?
- The practice phone number listed in the NPPES registry for Tricia Royer is (215) 955-7785.
- Does Tricia Royer accept Medicare?
- Tricia Royer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tricia Royer's NPI active?
- Yes — Tricia Royer's NPI (1649472978) is active in the NPPES registry as of the last update on 2018-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.