Seda Grigoryan, MD
NPI 1881180511 · Internal Medicine Physician · Chattanooga, TN
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seda Grigoryan, MD is a Internal Medicine Physician provider in Chattanooga, TN (NPI 1881180511).
Provider details
- NPI number
- 1881180511
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 69457 (TN)
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
7 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
145 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 41 | $9 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 31 | $32 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 29 | $156 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 23 | $117 |
| Blood Glucose (sugar) Test Performed By Hand-Held Instrument82962 | 21 | $3 |
Typical Medicare-allowed amounts for these services range $3–$156 (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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tirzepatidebrand: Mounjaro | 52 | 20 |
| Empagliflozinbrand: Jardiance | 49 | 18 |
| Semaglutidebrand: Ozempic | 39 | 16 |
| Levothyroxine Sodium | 27 | 16 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 14 | — |
| Metformin Hclbrand: Metformin Hcl Er | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,367 across 66 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
- 2018-07-05
- Last updated
- 2025-11-05
- Certified
- 2025-11-05
Frequently asked questions
- What is Seda Grigoryan's NPI number?
- Seda Grigoryan's National Provider Identifier (NPI) is 1881180511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seda Grigoryan's specialty?
- Seda Grigoryan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Seda Grigoryan located?
- Seda Grigoryan's practice location on file with NPPES is 5616 Brainerd Rd Ste 208, Chattanooga, TN 37411-5376.
- What is Seda Grigoryan's phone number?
- The practice phone number listed in the NPPES registry for Seda Grigoryan is (423) 265-3561.
- Does Seda Grigoryan accept Medicare?
- Seda Grigoryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seda Grigoryan's NPI active?
- Yes — Seda Grigoryan's NPI (1881180511) is active in the NPPES registry as of the last update on 2025-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.