Max Fon Sing, MD
NPI 1154436228 · Internal Medicine Physician · Brandon, FL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Max Fon Sing, MD is a Internal Medicine Physician provider in Brandon, FL (NPI 1154436228).
Provider details
- NPI number
- 1154436228
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME102048 (FL)
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
99 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 | 37 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 32 | $88 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 30 | $7 |
Typical Medicare-allowed amounts for these services range $7–$124 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 122 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 414 | 137 |
| Losartan Potassium | 357 | 106 |
| Lisinopril | 254 | 69 |
| Levothyroxine Sodium | 223 | 59 |
| Rosuvastatin Calcium | 219 | 61 |
| Metoprolol Tartrate | 219 | 62 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-20
- Last updated
- 2023-03-07
- Certified
- 2021-08-16
Frequently asked questions
- What is Max Fon Sing's NPI number?
- Max Fon Sing's National Provider Identifier (NPI) is 1154436228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Max Fon Sing's specialty?
- Max Fon Sing is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Max Fon Sing located?
- Max Fon Sing's practice location on file with NPPES is 1291 Bloomingdale Ave, Brandon, FL 33596-6168.
- What is Max Fon Sing's phone number?
- The practice phone number listed in the NPPES registry for Max Fon Sing is (813) 653-1800.
- Does Max Fon Sing accept Medicare?
- Max Fon Sing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Max Fon Sing's NPI active?
- Yes — Max Fon Sing's NPI (1154436228) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.