REX JUSTIN GO LIM MD
NPI 1346528031
Internal Medicine - Infectious Disease in Erie, PA

Q: What is Rex Justin Lim's NPI number?

The NPI number for Rex Justin Lim is 1346528031. It was assigned to this individual provider in the NPPES registry on July 28, 2011.

Q: What is Rex Justin Lim's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Rex Justin Lim was last updated on August 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 28, 2011PECOS EnrolledAccepts Medicare Assignment

120 E 2ND ST FL 1, ERIE, PA 16507(814) 877-7072(814) 877-4897 Get Directions Write a Review

NPPES record last updated: August 18, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 18, 2021, Mar 25, 2021, Sep 28, 2020 and 1 more (4 updates tracked since 2016).

On this page

About Rex Justin Go Lim Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

REX JUSTIN GO LIM MD (NPI 1346528031) is an individual infectious disease provider in Erie, Pennsylvania, licensed in Pennsylvania (MD458188) and active in the NPI registry since July 2011. He is enrolled in Medicare PECOS, is affiliated with Upmc Chautauqua At Wca, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1346528031

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameREX JUSTIN GO LIMCredential: MD

Location Address120 E 2ND ST FL 1Erie, PA 16507-1537

Mailing Address120 E 2nd St Fl 1Erie, PA 16507-1537 · (814) 877-7072 · Fax (814) 877-4897

Phone(814) 877-7072

Fax(814) 877-4897

Sole ProprietorNo

Medical School CMSOtherGraduated 2009

Enumeration DateJuly 28, 2011

Last NPPES UpdateAugust 18, 20214 updates tracked since enumeration

NPPES CertifiedAugust 18, 2021

✔ NPI 1346528031 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

Licenses✔ Licensed in PA · MD458188✔ Licensed in NY · 289131-01

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

120 E 2ND ST FL 1, Erie, PA 16507

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Rex Justin Go Lim Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID547582736

PECOS Enrollment IDI20160823002133, I20260602003845

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Rex Justin Lim reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regional Health Services Inc

0.1 mi

Family Medicine

201 STATE ST
Erie, PA 16550

Reassigned Medicare billing, Pennsylvania enrollment
962 clinicians in this Medicare group

NPI 1174520654 (814) 877-8140

Great Lakes Physician Practice PC

44 mi

Internal Medicine

15 S MAIN ST
Jamestown, NY 14701

Reassigned Medicare billing, New York enrollment
233 clinicians in this Medicare group

NPI 1730599176 (716) 488-1877

Infectious Disease Associates Of Orange County, Inc.

2,122 mi

Infectious Disease

999 N TUSTIN AVE STE 224
Santa Ana, CA 92705

Reassigned Medicare billing, California enrollment
9 clinicians in this Medicare group

NPI 1326403130 (714) 664-0045

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

224 services103 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

117 services82 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

115 services103 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

101 services93 patients

Follow-up inpatient consultation, limited, physicians typically spend 15 minutes communicating with the patient via telehealth G0406

A follow-up inpatient consultation is a brief, 15-minute check-in with your doctor via telehealth. This allows your physician to monitor your progress, address any concerns, and adjust your treatment plan if necessary. It's an essential part of your ongoing care.

63 services41 patients

Telehealth consultation, emergency department or initial inpatient, typically 30 minutes communicating with the patient via telehealth G0425

A telehealth consultation is a remote medical service where a doctor assesses your health condition through a video call. In an emergency or initial inpatient scenario, this typically lasts for about 30 minutes. This method allows for prompt, efficient care without needing to be physically present in a healthcare facility.

60 services53 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Upmc Chautauqua At Wca

Acute Care Hospitals · Jamestown, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330239

Location207 Foote AvenueJamestown, NY 14701 · Chautauqua County

Emergency services Birthing friendly

Upmc Hamot

Acute Care Hospitals · Erie, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390063

Location201 State StreetErie, PA 16550 · Erie County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 16507 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$126.34 typical visit price

range $54.64 – $166.87

Typical copayment $31.58 (range $13.66 – $41.71)

Most-billed visit code 99204

Established Patient

$96.82 typical visit price

range $17.33 – $135.84

Typical copayment $24.20 (range $4.33 – $33.96)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JESSICA M MARINO CRNP

Nurse Practitioner

120 E 2ND ST FL 1
ERIE, PA 16507

Erie County (814) 877-7072

GERALD JAY BISHOP MD

Internal Medicine

120 E 2ND ST FL 1
ERIE, PA 16507

Erie County (814) 456-8980

DR. GUS JONATHAN LEWIS D.O.

Internal Medicine (Infectious Disease)

120 E 2ND ST FL 1
ERIE, PA 16507

Erie County (814) 877-7072

BERNADINE ZEBROWSKI

Nurse Practitioner

120 E 2ND ST FL 1, 1ST FLOOR
ERIE, PA 16507

Erie County (814) 456-8980

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rex Justin Lim's NPI number?

The NPI number for Rex Justin Lim is 1346528031. It was assigned to this individual provider in the NPPES registry on July 28, 2011.

Where is Rex Justin Lim located?

Rex Justin Lim practices at 120 E 2nd St Fl 1, Erie, PA 16507. The listed phone number is (814) 877-7072.

What is Rex Justin Lim's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Rex Justin Lim enrolled in Medicare?

Yes. Rex Justin Lim is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Rex Justin Lim's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rex Justin Lim reassigns Medicare benefits to 3 organizations: Regional Health Services Inc (Erie, PA), Great Lakes Physician Practice PC (Jamestown, NY) and Infectious Disease Associates Of Orange County, Inc. (Santa Ana, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rex Justin Lim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Rex Justin Lim affiliated with any hospitals?

According to CMS data, Rex Justin Lim is affiliated with Upmc Chautauqua At Wca and Upmc Hamot.

When was this NPI record last updated?

The NPPES record for Rex Justin Lim was last updated on August 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.