Kiho Woo, M.D.
Kiho Woo, M.D. is an Internal Medicine Physician in Fullerton, CA, registered under NPI 1003091539.
Getting there
Here is what surrounds this office in Fullerton, based on OpenStreetMap data collected Sep 5, 2026. Parking is available about 0.20 mi away at Fullerton Transportation Center Parking Structure. There is EV charging 0.48 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.21 mi away, served by Fullerton Transportation Center. If you arrive early, there is a coffee shop 0.45 mi away.
Getting here and what is nearby
Convenience Circle K 127 ft ~1 min
Transit Harbor-Valencia 156 ft ~1 min
Transit Harbor-Elm 616 ft ~3 min
Parking 923 ft ~4 min
Parking 1,024 ft ~4 min
Parking Fullerton Transportation Center Parking Structure 0.20 mi ~4 min
150 West Santa Fe Avenue
Transit Fullerton Transportation Center 0.21 mi ~5 min
Restaurant The Continental Room 0.22 mi ~5 min
115 West Santa Fe Avenue, Fullerton 92832
Restaurant Lagos Mexican Cuisine 0.25 mi ~6 min
139 West Santa Fe Avenue, Fullerton 92832
Gas station Costco Gasoline 0.26 mi ~6 min
Restaurant J's Korean Cuisine 0.26 mi ~6 min
114 West Commonwealth Avenue, Fullerton 92832
Tu-We 17:00-24:00; Su 11:30-20:30; Th 17:00-02:00; Fr-Sa 11:30-02:00
Convenience King's Group Smoke 0.31 mi ~7 min
EV charging Volta 0.35 mi ~7 min
Grocery Amazon Fresh 0.35 mi ~8 min
1100 Harbor Boulevard, Fullerton 92832
Coffee Starbucks 0.38 mi ~8 min
Coffee The Smoking Tiger Coffee and Bread 0.41 mi ~9 min
Mo-Su 07:00-19:00
Grocery The British Grocer 0.44 mi ~9 min
Coffee The Brownstone Cafe 0.45 mi ~10 min
305 North Harbor Boulevard, Fullerton 92832
Mo-Su 07:00-15:30
EV charging Tesla Supercharger 0.48 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 |
|---|---|---|
| A96349 | CA | Internal Medicine Physician primary |
This provider holds licence A96349 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 - Internal Medicine
- PAC ID
- 1850431735
- Enrollment ID
- I20091228000471
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. 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 Internal Medicine covers
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
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 | 1003091539 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 3, 2008 |
| Last updated | Dec 2, 2019 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
101 E. VALENCIA DR. Fullerton, CA 92835 (714) 449-4800 Fax (714) 578-8629 |
| Mailing address |
101 E VALENCIA MESA DR Fullerton, CA 92835 |
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 | 0 | 9 | 1 | 5 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 9 | 2 | 5 | 6 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.