Siu-Ling Ma, M.D.
NPI 1538336268 · Endocrinology, Diabetes & Metabolism Physician · Fresh Meadows, NY
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siu-Ling Ma, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Fresh Meadows, NY (NPI 1538336268).
Provider details
- NPI number
- 1538336268
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 252130 (NY)
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
18 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
1,798 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 423 | $150 |
| 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 | 398 | $19 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 244 | $3 |
| Hemoglobin A1c Level, By Device for Home Use83037 | 159 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 152 | $106 |
| Insertion of Needle Into Vein for Collection of Blood Sample |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 259 | 80 |
| Metformin Hclbrand: Metformin Hcl Er | 250 | 81 |
| Metformin Hcl | 250 | 84 |
| Empagliflozinbrand: Jardiance | 235 | 66 |
| Glimepiride | 160 | 43 |
| Sitagliptin Phosphatebrand: Januvia | 154 | 37 |
| Tirzepatide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-12
- Last updated
- 2024-06-10
- Certified
- 2024-06-10
Frequently asked questions
- What is Siu-Ling Ma's NPI number?
- Siu-Ling Ma's National Provider Identifier (NPI) is 1538336268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siu-Ling Ma's specialty?
- Siu-Ling Ma is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Siu-Ling Ma located?
- Siu-Ling Ma's practice location on file with NPPES is 17415 Horace Harding Expy, Fresh Meadows, NY 11365-1527.
- What is Siu-Ling Ma's phone number?
- The practice phone number listed in the NPPES registry for Siu-Ling Ma is (718) 762-3111.
- Does Siu-Ling Ma accept Medicare?
- Siu-Ling Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siu-Ling Ma's NPI active?
- Yes — Siu-Ling Ma's NPI (1538336268) is active in the NPPES registry as of the last update on 2024-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.