Mary Ann Lim, MD
NPI 1457573271 · Nephrology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ann Lim, MD is a Nephrology Physician provider in Philadelphia, PA (NPI 1457573271).
Provider details
- NPI number
- 1457573271
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD431081 (PA)
Specialties & taxonomies
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
633 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 236 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 150 | $91 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 103 | $138 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 89 | $114 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 26 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 301 | 83 |
| Carvedilol | 219 | 51 |
| Nifedipinebrand: Nifedipine Er | 180 | 36 |
| Atorvastatin Calcium | 141 | 45 |
| Tacrolimus | 125 | 23 |
| Pravastatin Sodium | 125 | 32 |
| Famotidine | 123 | 31 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-02
- Last updated
- 2022-06-30
- Certified
- 2022-06-30
Frequently asked questions
- What is Mary Ann Lim's NPI number?
- Mary Ann Lim's National Provider Identifier (NPI) is 1457573271, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ann Lim's specialty?
- Mary Ann Lim is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Ann Lim located?
- Mary Ann Lim's practice location on file with NPPES is 3400 Civic Center Blvd, Philadelphia, PA 19104-4306.
- What is Mary Ann Lim's phone number?
- The practice phone number listed in the NPPES registry for Mary Ann Lim is (215) 662-2638.
- Does Mary Ann Lim accept Medicare?
- Mary Ann Lim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ann Lim's NPI active?
- Yes — Mary Ann Lim's NPI (1457573271) is active in the NPPES registry as of the last update on 2022-06-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.