Sergio Grajeda
NPI 1689341794 · Internal Medicine Physician · Florence, SC
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sergio Grajeda is a Internal Medicine Physician provider in Florence, SC (NPI 1689341794).
Provider details
- NPI number
- 1689341794
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 92987 (SC)
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
4 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
361 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) |
|---|---|---|
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 143 | $47 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 86 | $74 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 82 | $105 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 34 | $120 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 16 | $163 |
Typical Medicare-allowed amounts for these services range $47–$163 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 45 | 19 |
| Semaglutidebrand: Ozempic | 45 | — |
| Apixabanbrand: Eliquis | 26 | 13 |
| Losartan Potassium | 24 | — |
| Metoprolol Tartrate | 24 | 11 |
| Amlodipine Besylate | 16 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-08-26
- Last updated
- 2024-08-01
- Certified
- 2024-08-01
Frequently asked questions
- What is Sergio Grajeda's NPI number?
- Sergio Grajeda's National Provider Identifier (NPI) is 1689341794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sergio Grajeda's specialty?
- Sergio Grajeda is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sergio Grajeda located?
- Sergio Grajeda's practice location on file with NPPES is 805 Pamplico Hwy, Florence, SC 29505-6047.
- What is Sergio Grajeda's phone number?
- The practice phone number listed in the NPPES registry for Sergio Grajeda is (908) 672-4719.
- Does Sergio Grajeda accept Medicare?
- Sergio Grajeda is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sergio Grajeda's NPI active?
- Yes — Sergio Grajeda's NPI (1689341794) is active in the NPPES registry as of the last update on 2024-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.