Marcus Merriweather, M.D.
NPI 1538343215 · Family Medicine Physician · Altamonte Springs, FL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Merriweather, M.D. is a Family Medicine Physician provider in Altamonte Springs, FL (NPI 1538343215).
Provider details
- NPI number
- 1538343215
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME100398 (FL)
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 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
276 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 | 142 | $123 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $87 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 26 | $164 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 25 | $125 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 13 | $18 |
Typical Medicare-allowed amounts for these services range $18–$164 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 156 | 66 |
| Atorvastatin Calcium | 152 | 74 |
| Metformin Hcl | 108 | 40 |
| Lisinopril | 107 | 40 |
| Levothyroxine Sodium | 83 | 41 |
| Rosuvastatin Calcium | 74 | 32 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-12-18
- Last updated
- 2013-12-11
Frequently asked questions
- What is Marcus Merriweather's NPI number?
- Marcus Merriweather's National Provider Identifier (NPI) is 1538343215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Merriweather's specialty?
- Marcus Merriweather is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marcus Merriweather located?
- Marcus Merriweather's practice location on file with NPPES is 661 E Altamonte Drive, Altamonte Springs, FL 32701-5102.
- What is Marcus Merriweather's phone number?
- The practice phone number listed in the NPPES registry for Marcus Merriweather is (407) 831-4040.
- Does Marcus Merriweather accept Medicare?
- Marcus Merriweather is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Merriweather's NPI active?
- Yes — Marcus Merriweather's NPI (1538343215) is active in the NPPES registry as of the last update on 2013-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.