Lei Lynn, M.D.
Lei Lynn, M.D. is an Internal Medicine Physician in Washington, DC, registered under NPI 1003235433.
Getting there
Here is what surrounds this office in Washington, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 0.31 mi away at Tishman Speyer. There is EV charging 0.45 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 358 ft away, served by Pennsylvania Ave NW at 22nd St NW. A pharmacy sits 0.33 mi from the entrance (Tschiffely Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 557 ft away.
Getting here and what is nearby
Transit Pennsylvania Ave NW at 22nd St NW 280 ft ~2 min
Coffee Tatte Bakery & Cafe 277 ft ~2 min
2129 I Street Northwest, Washington 20037
Mo-Sa 07:00-20:00; Su 08:00-19:00
Transit Pennsylvania Ave NW at 21st St NW 296 ft ~2 min
Restaurant Bodega 331 ft ~2 min
2127 I Street Northwest
Transit Pennsylvania Ave NW at 22nd St NW 358 ft ~2 min
Coffee Peet's Coffee 412 ft ~2 min
Grocery Whole Foods Market 439 ft ~2 min
2201 I Street Northwest, Washington 20037
Mo-Su 07:00-22:00
Restaurant Astoria's Kitchen by 54 458 ft ~2 min
Restaurant True Burger 463 ft ~2 min
Hotel Hotel Lombardy 534 ft ~3 min
2019 Pennsylvania Avenue;Pennsylvania Avenue Northwest
Coffee Ahra Cafe 557 ft ~3 min
Pharmacy CVS Pharmacy 612 ft ~3 min
Hotel One Washington Circle DC, Tapestry Collection by Hilton 846 ft ~4 min
Convenience Best Vending II 887 ft ~4 min
730 21st Street Northwest
Pharmacy CVS Pharmacy 919 ft ~4 min
Hotel West End Washington DC 975 ft ~4 min
Parking Presidential Plaza 0.22 mi ~5 min
Mo-Fr 07:00-21:00
Parking Park America 0.22 mi ~5 min
Convenience Marvelous Market 0.24 mi ~5 min
2424 Pennsylvania Avenue Northwest
Gas station Exxon 0.24 mi ~5 min
Convenience FoBoGro 0.31 mi ~7 min
Parking Tishman Speyer 0.31 mi ~7 min
Mo-Fr 07:00-22:00
Pharmacy Tschiffely Pharmacy 0.33 mi ~7 min
Mo-Fr 08:00-18:00
Grocery Trader Joe's 0.34 mi ~7 min
1101 25th Street Northwest, Washington 20037
08:00-22:00
Grocery Streets Market 0.34 mi ~7 min
Gas station Sunoco 0.44 mi ~9 min
EV charging ChargePoint 0.45 mi ~10 min
Gas station Valero 0.49 mi ~10 min
2708 Virginia Avenue Northwest, Washington 20037
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 |
|---|---|---|
| MD045138 | DC | Internal Medicine Physician primary |
This provider holds licence MD045138 issued in DC. 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
- 4688973605
- Enrollment ID
- I20170811002224
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 | 1003235433 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 14, 2014 |
| Last updated | Mar 24, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
2150 PENNSYLVANIA AVE NW SUITE 5-416 Washington, DC 20037 (202) 741-2574 |
| Other names |
Lei Du 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 | 2 | 3 | 5 | 4 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 3 | 1 | 4 | 6 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.