Daniel Golpanian, M.D.
NPI 1639526957 · Gastroenterology Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Golpanian, M.D. is a Gastroenterology Physician provider in Pasadena, CA (NPI 1639526957).
Provider details
- NPI number
- 1639526957
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A201016 (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
10 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
151 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) |
|---|---|---|
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 31 | $266 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 27 | $537 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $106 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 24 | $125 |
| Colorectal Cancer Screening; Colonoscopy on Individual Not Meeting Criteria for High RiskG0121 | 16 | $354 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 111 | 106 |
| Pantoprazole Sodium | 44 | 31 |
| Linaclotidebrand: Linzess | 30 | — |
| Omeprazole | 29 | 15 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 29 | 29 |
| Famotidine | 22 | 13 |
| Metronidazole | 22 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$297 across 3 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
- 2016-05-17
- Last updated
- 2025-08-20
- Certified
- 2025-08-20
Frequently asked questions
- What is Daniel Golpanian's NPI number?
- Daniel Golpanian's National Provider Identifier (NPI) is 1639526957, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Golpanian's specialty?
- Daniel Golpanian is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Golpanian located?
- Daniel Golpanian's practice location on file with NPPES is 50 Alessandro Pl Ste 410, Pasadena, CA 91105-3175.
- What is Daniel Golpanian's phone number?
- The practice phone number listed in the NPPES registry for Daniel Golpanian is (626) 793-7114.
- Does Daniel Golpanian accept Medicare?
- Daniel Golpanian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Golpanian's NPI active?
- Yes — Daniel Golpanian's NPI (1639526957) is active in the NPPES registry as of the last update on 2025-08-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.