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DR. BOON LIM
NPI 1255447959
Internal Medicine in Lutherville, MD

Active since August 22, 2006PECOS Enrolled
8503 THORNTON RD, LUTHERVILLE, MD 21093(410) 967-4393(410) 823-1364 Get Directions Write a Review

NPPES record last updated: November 21, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 21, 2023, Nov 19, 2018 (2 updates tracked since 2018).

About Dr. Boon Lim NPPES

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

DR. BOON LIM (NPI 1255447959) is an individual internal medicine provider in Lutherville, Maryland, licensed in Maryland (D37254) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1255447959
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. BOON LIM
Location Address8503 THORNTON RDLutherville, MD 21093-4800
Mailing Address8503 Thornton RdLutherville, MD 21093-4800 · (410) 967-4393 · Fax (410) 823-1364
Phone(410) 967-4393
Fax(410) 823-1364
Sole ProprietorNo
Enumeration DateAugust 22, 2006
Last NPPES UpdateNovember 21, 20232 updates tracked since enumeration
NPPES CertifiedNovember 21, 2023
✔ NPI 1255447959 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MD · D37254
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
8503 THORNTON RD, Lutherville, MD 21093
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Other Identifiers 11

Other117611PA · Geisinger Health Plan
Other20090433PA · Amerihealth Mercy-wmg
Other50082107PA · Capital Blue Cross-wmg
Medicaid125361101MD
Other531317MD · Carefirst Md Bcbs
Other258747PA · Unison-wmg
Other6726533PA · Aetna
Other018105PA · Johns Hopkins
Other1550632PA · Gateway-wmg
Other689005PA · Highmark Blue Shield
Medicaid102237934PA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Boon Lim is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Boon Lim reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Quantum Healthcare Medical Associates Inc.
2,269 mi
Hospitalist
400 N PEPPER AVE
Colton, CA 92324
  • Reassigned Medicare billing, California enrollment
  • 338 clinicians in this Medicare group
NPI 1568490597 (909) 580-1000
Quantum Bay Area Hospitalist Medical Group Inc
2,444 mi
Hospitalist
2500 GRANT RD
Mountain View, CA 94040
  • Reassigned Medicare billing, California enrollment
  • 217 clinicians in this Medicare group
NPI 1902279656 (650) 940-7000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21093 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
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
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.

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 Boon Lim's NPI number?

The NPI number for Boon Lim is 1255447959. It was assigned to this individual provider in the NPPES registry on August 22, 2006.

Where is Boon Lim located?

Boon Lim practices at 8503 Thornton Rd, Lutherville, MD 21093. The listed phone number is (410) 967-4393.

What is Boon Lim's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Boon Lim enrolled in Medicare?

Yes. Boon Lim is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Boon Lim's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Boon Lim reassigns Medicare benefits to 2 organizations: Quantum Healthcare Medical Associates Inc. (Colton, CA) and Quantum Bay Area Hospitalist Medical Group Inc (Mountain View, 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 Boon Lim's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Boon Lim was last updated on November 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.