Ruth Chan, DO
NPI 1376809616 · Rheumatology Physician · Columbus, OH
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruth Chan, DO is a Rheumatology Physician provider in Columbus, OH (NPI 1376809616).
Provider details
- NPI number
- 1376809616
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 34.011378 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
304 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 205 | $119 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 41 | $16 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 31 | $85 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 27 | $158 |
Typical Medicare-allowed amounts for these services range $16–$158 (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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 216 | 50 |
| Prednisone | 183 | 59 |
| Methotrexate Sodiumbrand: Methotrexate | 96 | 22 |
| Gabapentin | 56 | 17 |
| Duloxetine Hcl | 30 | 11 |
| Adalimumabbrand: Humira(cf) Pen | 27 | — |
| Meloxicam |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-11
- Last updated
- 2026-04-21
- Certified
- 2026-04-21
Frequently asked questions
- What is Ruth Chan's NPI number?
- Ruth Chan's National Provider Identifier (NPI) is 1376809616, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Chan's specialty?
- Ruth Chan is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Chan located?
- Ruth Chan's practice location on file with NPPES is 1800 Zollinger Rd, Columbus, OH 43221-2849.
- What is Ruth Chan's phone number?
- The practice phone number listed in the NPPES registry for Ruth Chan is (614) 293-4837.
- Does Ruth Chan accept Medicare?
- Ruth Chan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruth Chan's NPI active?
- Yes — Ruth Chan's NPI (1376809616) is active in the NPPES registry as of the last update on 2026-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.