Vivian Hobayan, MD
NPI 1790852333 · Specialist · Lima, OH
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Vivian Hobayan, MD is a Specialist provider in Lima, OH (NPI 1790852333).
Provider details
- NPI number
- 1790852333
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 35077426P (OH)
Specialties & taxonomies
Other Service Providers
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
3,704 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 | 1,576 | $120 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 449 | $57 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 263 | $116 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 238 | $13 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 237 | $85 |
| X-Ray of Hand, 2 Views73120 | 215 | $29 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 1,205 | 338 |
| Methotrexate Sodiumbrand: Methotrexate | 877 | 243 |
| Prednisone | 859 | 246 |
| Sulfasalazine | 214 | 67 |
| Meloxicam | 187 | 63 |
| Sulfasalazinebrand: Sulfasalazine Dr | 177 | 62 |
| Alendronate Sodium | 136 | 38 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$297 across 14 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
- 2006-11-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Vivian Hobayan's NPI number?
- Vivian Hobayan's National Provider Identifier (NPI) is 1790852333, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Hobayan's specialty?
- Vivian Hobayan is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Vivian Hobayan located?
- Vivian Hobayan's practice location on file with NPPES is 750 W High St Ste 260, Lima, OH 45801-3959.
- What is Vivian Hobayan's phone number?
- The practice phone number listed in the NPPES registry for Vivian Hobayan is (419) 222-3758.
- Does Vivian Hobayan accept Medicare?
- Vivian Hobayan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Vivian Hobayan's NPI active?
- Yes — Vivian Hobayan's NPI (1790852333) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.