Diana Sayadyan, M.D.
NPI 1598720377 · Family Medicine Physician · La Canada, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Sayadyan, M.D. is a Family Medicine Physician provider in La Canada, CA (NPI 1598720377).
Provider details
- NPI number
- 1598720377
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A88224 (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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
88 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) |
|---|---|---|
| Ultrasound of Heart93307 | 69 | $155 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 19 | $16 |
Typical Medicare-allowed amounts for these services range $16–$155 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 209 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 2,191 | 283 |
| Rosuvastatin Calcium | 1,952 | 260 |
| Omeprazole | 1,862 | 233 |
| Amlodipine Besylate | 1,635 | 214 |
| Atorvastatin Calcium | 1,393 | 174 |
| Pantoprazole Sodium | 925 | 128 |
| Fluticasone Propionate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$131 across 6 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
Additional practice locations (1)
- 710 S Central Ave Ste 350Glendale, CA 91204-4647Phone: (818) 616-7557Fax: (818) 646-8457
Registry dates
- Enumerated
- 2006-04-17
- Last updated
- 2026-01-09
- Certified
- 2026-01-09
Frequently asked questions
- What is Diana Sayadyan's NPI number?
- Diana Sayadyan's National Provider Identifier (NPI) is 1598720377, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Sayadyan's specialty?
- Diana Sayadyan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Sayadyan located?
- Diana Sayadyan's practice location on file with NPPES is 2200 Foothill Blvd, La Canada, CA 91011-1413.
- What is Diana Sayadyan's phone number?
- The practice phone number listed in the NPPES registry for Diana Sayadyan is (818) 790-1103.
- Does Diana Sayadyan accept Medicare?
- Diana Sayadyan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Sayadyan's NPI active?
- Yes — Diana Sayadyan's NPI (1598720377) is active in the NPPES registry as of the last update on 2026-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.