Mary Lim-Fung, DO
NPI 1750637344 · Clinical Cardiac Electrophysiology Physician · Humble, TX
Enrolled with Medicare as Practitioner - Cardiac Electrophysiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Lim-Fung, DO is a Clinical Cardiac Electrophysiology Physician provider in Humble, TX (NPI 1750637344).
Provider details
- NPI number
- 1750637344
- Entity type
- Individual
- Primary specialty
- Clinical Cardiac Electrophysiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- P8595 (TX)
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
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
763 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 152 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 110 | $127 |
| Evaluation of Cardiac Rhythm Monitor System, Remote Up to 30 Days93298 | 63 | $34 |
| Use of a Drug to Induce Depression of Consciousness By Physician Performing a Procedure (5 Years Or Older), Initial 15 Minutes99152 | 49 | $12 |
| Evaluation of Implantable Heart and Blood Vessel Monitoring System, Remote Up to 30 Days93297 | 44 | $31 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amiodarone Hcl | 69 | 27 |
| Sucralfate | 57 | 51 |
| Colchicine | 52 | 47 |
| Pantoprazole Sodium | 42 | 38 |
| Minocycline Hcl | 34 | 31 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 33 | 26 |
| Apixabanbrand: Eliquis | 33 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$5,372 across 94 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
Additional practice locations (2)
- 10930 Resource Pkwy Ste aHouston, TX 77089-6157Phone: (281) 661-5767Fax: (281) 676-3618
- 10907 Memorial Hermann Dr Ste 400Pearland, TX 77584-4115Phone: (281) 740-0280Fax: (832) 486-9953
Registry dates
- Enumerated
- 2012-08-01
- Last updated
- 2026-05-19
- Certified
- 2026-05-19
Frequently asked questions
- What is Mary Lim-Fung's NPI number?
- Mary Lim-Fung's National Provider Identifier (NPI) is 1750637344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Lim-Fung's specialty?
- Mary Lim-Fung is listed in the NPPES registry with a primary specialty of Clinical Cardiac Electrophysiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Lim-Fung located?
- Mary Lim-Fung's practice location on file with NPPES is 18450 Highway 59 N, Humble, TX 77338-4404.
- What is Mary Lim-Fung's phone number?
- The practice phone number listed in the NPPES registry for Mary Lim-Fung is (281) 446-3665.
- Does Mary Lim-Fung accept Medicare?
- Mary Lim-Fung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Lim-Fung's NPI active?
- Yes — Mary Lim-Fung's NPI (1750637344) is active in the NPPES registry as of the last update on 2026-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.