Catherine Callinan, MD
Catherine Callinan, MD is an Obstetrics & Gynecology Physician in Aurora, CO, registered under NPI 1003311044.
Getting there
Here is what surrounds this office in Aurora, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 0.32 mi away at Henderson Garage (Visitor/Patient & Permit). The nearest transit stop is 540 ft away. A pharmacy sits 0.48 mi from the entrance (CarePlus CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 826 ft away.
Getting here and what is nearby
Coffee Dazbog Coffee 81 ft ~1 min
Pharmacy Outpatient Pharmacy 102 ft ~1 min
Restaurant Courtyard Cafe 188 ft ~1 min
Transit E 16th Ave & Aurora Ct 243 ft ~1 min
Pharmacy Atrium Pharmacy 254 ft ~1 min
Transit E 16th Ave & Aurora Ct 380 ft ~2 min
Transit 540 ft ~3 min
Restaurant Chai & Chai 681 ft ~3 min
12501 East 17th Avenue, 80045
Mo-Tu 11:00-14:00; We-Fr 11:00-14:00, 17:30-20:30; Sa 17:30-20:30
Restaurant Pudge Bros. Pizza 735 ft ~3 min
Coffee Dazbog Coffee 800 ft ~4 min
Gas station Diamond Shamrock 788 ft ~3 min
Coffee Starbucks 826 ft ~4 min
Convenience Corner Store Express 849 ft ~4 min
Parking Leprino Parking Garage 846 ft ~4 min
12501 East 17th Avenue, 80045
Parking Fitzsimons Village Parking Garage 0.26 mi ~6 min
1420 South Ursula Street, Aurora 80011
Hotel Hyatt House Denver / Aurora 0.31 mi ~7 min
Parking Henderson Garage (Visitor/Patient & Permit) 0.32 mi ~7 min
12706 East Montview Boulevard, Aurora 80010
Hotel SpringHill Suites Denver at Anschutz Medical Campus 0.39 mi ~8 min
Convenience 7-Eleven 0.41 mi ~9 min
Gas station Phillips 66 0.41 mi ~9 min
Hotel Hyatt Regency Aurora-Denver Conference Center 0.42 mi ~9 min
Convenience 7-Eleven 0.44 mi ~9 min
Pharmacy CarePlus CVS Pharmacy 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 |
|---|---|---|
| DR.0068970 | CO | Obstetrics & Gynecology Physician primary |
This provider holds licence DR.0068970 issued in CO. 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 - Obstetrics/gynecology
- PAC ID
- 9638433469
- Enrollment ID
- I20220913001510
Medicare enrolment is recorded as approved under the provider type Practitioner - Obstetrics/gynecology. 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 Obstetrics & Gynecology covers
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women. NUCC Health Care Provider Taxonomy, code 207V00000X
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 | 1003311044 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 29, 2018 |
| Last updated | Feb 11, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MD |
| Practice address |
1635 AURORA CT Aurora, CO 80045 (720) 848-0000 |
| Mailing address |
PO BOX 110429 Aurora, CO 80042 |
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 | 3 | 1 | 1 | 0 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 1 | 2 | 0 | 8 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.