Rex Justin Lim, MD
NPI 1346528031 · Infectious Disease Physician · Erie, PA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rex Justin Lim, MD is a Infectious Disease Physician provider in Erie, PA (NPI 1346528031).
Provider details
- NPI number
- 1346528031
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 289131-01 (NY)
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 tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
696 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 224 | $112 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 117 | $75 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 115 | $124 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 101 | $164 |
| Follow-Up Inpatient Consultation, Limited, Physicians Typically Spend 15 Minutes Communicating With the Patient Via TelehealthG0406 | 63 | $39 |
| Telehealth Consultation, Emergency Department Or Initial Inpatient, Typically 30 Minutes Communicating With the Patient Via Telehealth |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cefazolin Sodium | 86 | 18 |
| Vancomycin Hcl | 71 | 13 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 43 | — |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 36 | — |
| Cefadroxil | 29 | 11 |
| Cephalexin | 28 | — |
| Ertapenem Sodiumbrand: Ertapenem | 27 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 across 2 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
- 2011-07-28
- Last updated
- 2021-08-18
- Certified
- 2021-08-18
Frequently asked questions
- What is Rex Justin Lim's NPI number?
- Rex Justin Lim's National Provider Identifier (NPI) is 1346528031, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rex Justin Lim's specialty?
- Rex Justin Lim is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Rex Justin Lim located?
- Rex Justin Lim's practice location on file with NPPES is 120 E 2nd St Fl 1, Erie, PA 16507-1537.
- What is Rex Justin Lim's phone number?
- The practice phone number listed in the NPPES registry for Rex Justin Lim is (814) 877-7072.
- Does Rex Justin Lim accept Medicare?
- Rex Justin Lim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rex Justin Lim's NPI active?
- Yes — Rex Justin Lim's NPI (1346528031) is active in the NPPES registry as of the last update on 2021-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.