Tiffani Erickson, MD
Tiffani Erickson, MD is an Obstetrics & Gynecology Physician in Washington, DC, registered under NPI 1003349564. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Washington, based on OpenStreetMap data collected Sep 14, 2026. Parking is available about 0.34 mi away at Circle Park. There is EV charging 1,000 ft from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 427 ft away, served by Van Ness St NW at Wisconsin Ave NW. A pharmacy sits 0.40 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.28 mi away.
Getting here and what is nearby
Restaurant Surfside 125 ft ~1 min
4200 Wisconsin Avenue Northwest, Washington 20015
Mo-Su 11:00-01:00
Transit Wisconsin Ave NW at Veazey St NW 134 ft ~1 min
Transit Wisconsin Ave NW at Van Ness St NW 204 ft ~1 min
Gas station Exxon 189 ft ~1 min
4244 Wisconsin Avenue Northwest, Washington 20016
Restaurant CAVA 225 ft ~1 min
4237 Wisconsin Avenue Northwest, Washington 20016
Parking 312 ft ~2 min
Parking 316 ft ~2 min
Restaurant McDonald's 296 ft ~2 min
4130 Wisconsin Avenue Northwest, Washington 20016
24/7
Transit Van Ness St NW at Wisconsin Ave NW 427 ft ~2 min
Convenience Tenley Mini Market 562 ft ~3 min
4326 Wisconsin Avenue Northwest, Washington
Convenience 7-Eleven 591 ft ~3 min
4319 Wisconsin Avenue Northwest, Washington 20016-2139
Grocery Lidl 668 ft ~3 min
Coffee Paris Baguette 819 ft ~4 min
EV charging ChargePoint 1,000 ft ~4 min
Coffee Tatte Bakery & Cafe 0.20 mi ~4 min
Grocery Wegmans 0.21 mi ~5 min
Coffee The Fox Den 0.28 mi ~6 min
3825 Wisconsin Avenue Northwest, Washington 20016
Convenience Wawa 0.32 mi ~7 min
4530 40th Street Northwest, Washington 20016
24/7
Parking Circle Park 0.34 mi ~7 min
Mo-Su 07:00-23:00
Grocery Whole Foods Market 0.38 mi ~8 min
4530 40th Street Northwest, Washington 20016
Mo-Su 07:00-22:00
Pharmacy CVS Pharmacy 0.40 mi ~9 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 |
|---|---|---|
| MD049357 | DC | Obstetrics & Gynecology Physician primary |
| 01096376A | IN | Obstetrics & Gynecology Physician |
| CDR.0004535 | CO | Obstetrics & Gynecology Physician |
Licences are recorded in 3 states: DC, IN, CO. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Obstetrics/gynecology
- PAC ID
- 5698174316
Enrolled in Medicare 5 times, across 5 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| District of Columbia | I20210601001131 | Practitioner - Obstetrics/gynecology |
| Washington | I20250108003217 | Practitioner - Obstetrics/gynecology |
| Indiana | I20250502002653 | Practitioner - Obstetrics/gynecology |
| Illinois | I20250617000526 | Practitioner - Obstetrics/gynecology |
| Colorado | I20250902000059 | Practitioner - Obstetrics/gynecology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Obstetrics/gynecology. There are 5 separate enrolment records across 5 states (DC, WA, IN, IL, CO). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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 3 states
This provider holds licences in 3 states: Colorado, District of Columbia and Indiana. The practice address on file is in Washington, DC, 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
- CDR.0004535
- Specialty
- Obstetrics & Gynecology Physician
- Licence
- MD049357
- Specialty
- Obstetrics & Gynecology 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 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
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207V00000X | Obstetrics & Gynecology Physician | MD049357 | DC | primary |
| 207V00000X | Obstetrics & Gynecology Physician | 01096376A | IN | |
| 207V00000X | Obstetrics & Gynecology Physician | CDR.0004535 | CO | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003349564 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 11, 2017 |
| Last updated | Aug 15, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | MD |
| Practice address |
4200 WISCONSIN AVE NW STE 4 Washington, DC 20016 (202) 295-0544 Fax (877) 544-7752 |
| Other identifiers |
1101023761
· Other (IN) |
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 | 4 | 9 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 4 | 9 | 5 | 3 |
Sum = 56 · next multiple of 10 = 60 · 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.