Sheila Grammatico, M.D., M.P.H.
NPI 1821402926 · Internal Medicine Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sheila Grammatico, M.D., M.P.H. is a Internal Medicine Physician provider in Pasadena, CA (NPI 1821402926).
Provider details
- NPI number
- 1821402926
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.P.H.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
430 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 158 | $137 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 116 | $141 |
| 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 | 47 | $17 |
| Administration of Pneumococcal VaccineG0009 | 35 | $35 |
| Administration of Influenza Virus VaccineG0008 | 31 | $35 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 291 | 94 |
| Atorvastatin Calcium | 169 | 55 |
| Amlodipine Besylate | 132 | 39 |
| Losartan Potassium | 123 | 36 |
| Levothyroxine Sodium | 108 | 33 |
| Lisinopril | 96 | 32 |
| Alendronate Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-17
- Last updated
- 2021-08-10
- Certified
- 2021-08-10
Frequently asked questions
- What is Sheila Grammatico's NPI number?
- Sheila Grammatico's National Provider Identifier (NPI) is 1821402926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sheila Grammatico's specialty?
- Sheila Grammatico is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sheila Grammatico located?
- Sheila Grammatico's practice location on file with NPPES is 100 W California Blvd, Pasadena, CA 91105-3010.
- What is Sheila Grammatico's phone number?
- The practice phone number listed in the NPPES registry for Sheila Grammatico is (626) 397-5000.
- Does Sheila Grammatico accept Medicare?
- Sheila Grammatico is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sheila Grammatico's NPI active?
- Yes — Sheila Grammatico's NPI (1821402926) is active in the NPPES registry as of the last update on 2021-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.