Natalie Harris, D.O.
Natalie Harris, D.O. is an Internal Medicine Physician in Corpus Christi, TX, registered under NPI 1003004201.
Getting there
Here is what surrounds this office in Corpus Christi, based on OpenStreetMap data collected Aug 28, 2026. Parking is available about 378 ft away. The nearest transit stop is 552 ft away, served by 3301 Salameda @ Drs. Regional. A pharmacy sits 0.24 mi from the entrance (H-E-B Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 164 ft away.
Getting here and what is nearby
Transit Alameda @ Texan Trail 66 ft ~1 min
Transit Alameda @ Texan Trail 118 ft ~1 min
Coffee My Favorite Muffin and Bagel Cafe 164 ft ~1 min
Parking 133 ft ~1 min
Parking 272 ft ~2 min
Restaurant Whataburger 293 ft ~2 min
Parking 378 ft ~2 min
Transit 3301 Salameda @ Drs. Regional 552 ft ~3 min
Pharmacy CVS Pharmacy 864 ft ~4 min
Restaurant Subway 0.22 mi ~5 min
3133 South Alameda, Corpus Christi 78404
Mo-Fr 09:00-21:30; Sa 10:00-21:30; Su 10:00-21:00
Pharmacy H-E-B Pharmacy 0.23 mi ~5 min
Pharmacy H-E-B Pharmacy 0.24 mi ~5 min
Grocery H-E-B 0.26 mi ~6 min
Gas station H-E-B Fuel 0.30 mi ~6 min
South Alameda Street, Corpus Christi 78404
Restaurant Hua T'ai Chinese Restaurant 0.32 mi ~7 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 |
|---|---|---|
| Q5534 | TX | Internal Medicine Physician primary |
| 2112 | ME | Internal Medicine Physician |
Licences are recorded in 2 states: TX, ME. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 4385881663
- Enrollment ID
- I20160104002046
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.
Licensed in 2 states
This provider holds licences in 2 states: Maine and Texas. The practice address on file is in Corpus Christi, TX, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- Q5534
- Specialty
- Internal Medicine Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
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
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Q5534 | TX | primary |
| 207R00000X | Internal Medicine Physician | 2112 | ME |
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 | 1003004201 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 12, 2007 |
| Last updated | Feb 9, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | D.O. |
| Practice address |
3301 S ALAMEDA ST STE 201 Corpus Christi, TX 78411 (361) 857-2900 |
| Mailing address |
1004 W 32ND ST STE 400 Austin, TX 78705 |
| Other names |
Natalie Philbrick Former Legal Business Name |
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 | 0 | 4 | 2 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 0 | 8 | 2 | 0 |
Sum = 39 · next multiple of 10 = 40 · check digit = 1 · actual last digit = 1
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.