Anh Dao, M.D.
Anh Dao, M.D. is an Allergy & Immunology Physician in Columbus, OH, registered under NPI 1003176785.
Getting there
Here is what surrounds this office in Columbus, based on OpenStreetMap data collected Sep 9, 2026. Parking is available about 492 ft away. The nearest transit stop is 0.21 mi away, served by N James Rd & Allegheny Ave.
Getting here and what is nearby
Parking 271 ft ~2 min
Parking 319 ft ~2 min
Transit Veterans Administration Clinic 354 ft ~2 min
Parking 492 ft ~2 min
Transit Stelzer Rd & N James Rd 1,003 ft ~4 min
Transit N James Rd & Allegheny Ave 0.21 mi ~5 min
Hotel Days Inn 0.47 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A162446 | CA | Allergy & Immunology Physician primary |
This provider holds licence A162446 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Allergy/immunology
- PAC ID
- 9234430034
- Enrollment ID
- I20200331001479
Medicare enrolment is recorded as approved under the provider type Practitioner - Allergy/immunology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Allergy & Immunology covers
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system. NUCC Health Care Provider Taxonomy, code 207K00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003176785 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 29, 2012 |
| Last updated | Dec 12, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
420 N JAMES RD Columbus, OH 43219 (614) 257-5200 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 7 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 7 | 3 | 7 | 7 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.