Katherine Klein, M.D.
Katherine Klein, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Fairfax, VA, registered under NPI 1003107467. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Fairfax, based on OpenStreetMap data collected Aug 28, 2026. Parking is available about 0.46 mi away. There is EV charging 0.24 mi from the office (EVgo) — useful if you are driving in from out of town. The nearest transit stop is 0.23 mi away, served by Gallows Rd at Townsend St. A pharmacy sits 0.44 mi from the entrance (District Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.42 mi away.
Getting here and what is nearby
Parking B (Orange) Garage 268 ft ~2 min
Transit Gallows Rd at Willow Oaks Corp Dr 0.20 mi ~4 min
Transit Gallows Rd at Anderson Dr 0.22 mi ~5 min
Transit Gallows Rd at Townsend St 0.23 mi ~5 min
EV charging EVgo 0.24 mi ~5 min
Hotel Residence Inn Fairfax Merrifield 0.27 mi ~6 min
Grocery Aldi 0.27 mi ~6 min
8100 Arlington Boulevard, Falls Church 22042-1002
Mo-Su 08:00-21:00
Coffee Starbucks 0.29 mi ~6 min
Restaurant Jasmine Garden 0.29 mi ~6 min
Pharmacy CVS Pharmacy 0.31 mi ~7 min
Restaurant Dominion Deli 0.31 mi ~7 min
Parking Blue Garage 0.32 mi ~7 min
Fairfax Hospital Blue Entrance, Falls Church 22042
Restaurant Papa John's 0.32 mi ~7 min
8126 Arlington Boulevard, Falls Church 22042
Mo-Su 10:00-24:00
Gas station Shell 0.35 mi ~8 min
3051 Gallows Road, Falls Church
Hotel Extended Stay America 0.37 mi ~8 min
Willow Oaks Corporate Drive, Fairfax 22031
Convenience Sunoco 0.38 mi ~8 min
Gas station Sunoco 0.39 mi ~8 min
3070 Gate House Plaza, Falls Church 22042
Fr 00:00-23:59
Coffee Starbucks 0.42 mi ~9 min
Hotel Falls Church Marriott Fairview Park 0.43 mi ~9 min
Pharmacy District Pharmacy 0.44 mi ~9 min
8301 Arlington Boulevard, Fairfax 22031
Parking 0.46 mi ~10 min
3141 Fairview Park Drive, 22042
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 |
|---|---|---|
| 0101269274 | VA | Surgery Physician |
| 0101269274 | VA | Surgical Critical Care Physician |
| 0101269274 | VA | Thoracic Surgery (Cardiothoracic Vascular… primary |
This provider holds licence 0101269274 issued in VA. 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 - Cardiac Surgery
- PAC ID
- 9032414099
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Virginia | I20210120002861 | Practitioner - Cardiac Surgery |
| District of Columbia | I20220611000033 | Practitioner - Cardiac Surgery |
Medicare enrolment is recorded as approved under the provider type Practitioner - Cardiac Surgery. There are 2 separate enrolment records across 2 states (VA, DC). 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.
What Thoracic Surgery (Cardiothoracic Vascular Surgery) covers
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty. NUCC Health Care Provider Taxonomy, code 208G00000X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 208600000X | Surgery Physician | 0101269274 | VA | |
| 2086S0102X | Surgical Critical Care Physician Surgical Critical Care | 0101269274 | VA | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | VA | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — | |
| 208G00000X | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | 0101269274 | VA | primary |
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 | 1003107467 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 20, 2011 |
| Last updated | Jul 21, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
8081 INNOVATION PARK DR STE 800 Fairfax, VA 22031 (571) 472-4600 Fax (571) 665-6865 |
| Mailing address |
PO BOX 37174 Baltimore, MD 21297 |
| Other names |
Katherine Hoetzl 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 | 1 | 0 | 7 | 4 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 0 | 5 | 4 | 3 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.