Robert Lee, M.D.
NPI 1669583530 · Gastroenterology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1669583530
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A86736 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
182 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) |
|---|---|---|
| Study of Esophagus to Assess Movement91010 | 62 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 34 | $107 |
| Monitoring and Recording of Esophageal Function Through Nasal Tube With Electrode91037 | 26 | $54 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $72 |
| Monitoring and Recording of Esophageal Function Through Nasal Tube91034 | 20 | $55 |
| Measurement of Hydrogen in Breath to Test for Stomach and Bowel Symptoms91065 | 16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Diphenhydramine Hcl | 56 |
| Pantoprazole Sodium | 35 |
| 0.9 % Sodium Chloridebrand: Sodium Chloride | 35 |
| Ondansetron Hcl/Pfbrand: Ondansetron Hcl | 34 |
| Famotidine | 27 |
| Prucalopride Succinatebrand: Motegrity | 22 |
| Dicyclomine Hcl | 21 |
| Trazodone Hcl | 19 |
| Linaclotidebrand: Linzess | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$155 across 1 record (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
Additional practice locations (2)
- 5901 E 7th StLong Beach, CA 90822-5201Phone: (562) 826-8000
- 333 City Blvd WOrange, CA 92868-2903Phone: (714) 456-6745
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2023-03-07
- Certified
- 2022-10-14
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.