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Edit this profileAt a glance
- 1850 Town Center Pkwy, Reston, VA 20190
About Dr. Darnauer
Based in Reston, VA, Timothy M. Darnauer, DO is listed in the NPI registry under surgical critical care. Timothy is also listed as specializing in student in an organized health care education program. According to Medicare claims data, Timothy cared for 190 Medicare patients across 214 services. The services billed most often include critical care, first 30-74 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. NPI 1659640092 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (703) 689-9000
- Email not available
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Practice Locations
1850 TOWN CENTER PKWY
Reston, VA 20190
Procedures Most Often Billed to Medicare
214 services · 190 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
20 | More often than most peers in Surgical Critical Care |
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
14 | As often as other peers in Surgical Critical Care |
| Critical care, first 30-74 minutes | Office visit | 99291 |
109 | More often than most peers in Surgical Critical Care |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
22 | Less often than most peers in Surgical Critical Care |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
20 | Less often than most peers in Surgical Critical Care |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
16 | Less often than most peers in Surgical Critical Care |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
13 | Less often than most peers in Surgical Critical Care |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2009 at Other 8
Providers who graduated from the same medical school in the same year.
More connections — 1 related provider in 1 group
Also performs Insertion of non-tunneled central venous tube for infusion (5 years or older) 1
Providers in VA who bill this service to Medicare most often.
Common questions
What is Dr. Darnauer's specialty?
Dr. Darnauer is a surgical critical care in Reston, VA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Darnauer?
Dr. Darnauer is listed at 1850 Town Center Pkwy, Reston, VA 20190. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Darnauer?
The number on file is (703) 689-9000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Darnauer's NPI number?
Dr. Darnauer's National Provider Identifier is 1659640092. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Darnauer's medical education?
Dr. Darnauer attended Other, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Darnauer been practicing?
Dr. Darnauer has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Darnauer known for?
According to Medicare billing data, Dr. Darnauer performs procedures including insertion of non-tunneled central venous tube for infusion and insertion of artery tube for blood sampling or infusion through skin, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Darnauer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Darnauer. If this is you, claiming it is free.
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