James Stewart, M.D.
NPI 1689758294 · Internal Medicine Physician · Alhambra, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Stewart, M.D. is a Internal Medicine Physician provider in Alhambra, CA (NPI 1689758294).
Provider details
- NPI number
- 1689758294
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A34030 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
426 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 | 319 | $145 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 34 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 33 | $104 |
| Urinalysis, Manual Test81002 | 17 | $3 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 12 | $150 |
| Electrocardiogram, Routine Ecg With 12 Leads; Performed As a Screening for the Initial Preventive Physical Examination With Interpretation and ReportG0403 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 152 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 310 | 82 |
| Losartan Potassium | 266 | 80 |
| Amlodipine Besylate | 246 | 73 |
| Furosemide | 233 | 63 |
| Atorvastatin Calcium | 214 | 55 |
| Gabapentin | 209 | 63 |
| Hydrocodone/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,151 across 47 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
- 2006-10-24
- Last updated
- 2007-07-09
Frequently asked questions
- What is James Stewart's NPI number?
- James Stewart's National Provider Identifier (NPI) is 1689758294, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Stewart's specialty?
- James Stewart is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Stewart located?
- James Stewart's practice location on file with NPPES is 1024 S Garfield Ave, Alhambra, CA 91801-4762.
- What is James Stewart's phone number?
- The practice phone number listed in the NPPES registry for James Stewart is (626) 289-5181.
- Does James Stewart accept Medicare?
- James Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Stewart's NPI active?
- Yes — James Stewart's NPI (1689758294) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.