Physician Profile
Nicholas R. Thiessen, MD
Unclaimed ProfileAbout Dr. Thiessen
Nicholas R. Thiessen, MD practices surgical critical care in Chandler, AZ. Nicholas is a 2008 graduate of University of Iowa, Rj & L Carver College of Medicine. Nicholas is also listed as specializing in surgery. Medicare claims data shows Nicholas provided 420 services to 363 patients. The services billed most often include initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (480) 728-4700
- Email not available
Practice Locations
485 S DOBSON RD STE 201
Chandler, AZ 85224
1955 W Frye Rd
Chandler, AZ 85224
Procedures Most Often Billed to Medicare
420 services · 363 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
95 | More 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 |
90 | More 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 |
61 | More 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 |
54 | More often than most peers in Surgical Critical Care |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
31 | More often than most peers in Surgical Critical Care |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
30 | As often as other peers in Surgical Critical Care |
| Critical care, first 30-74 minutes | Office visit | 99291 |
25 | |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
20 | More often than most peers in Surgical Critical Care |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
14 |
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.
Other surgical critical cares at this location 1
Same specialty, same street address — most likely the same department or group.
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.
Other surgical critical cares in Chandler 7
Same specialty, same city.
More connections — 12 related providers in 2 groups
Trained at University of Iowa, Rj & L Carver College of Medicine 4
Other providers in the same specialty who trained at the same institution.
Class of 2008 at University of Iowa, Rj & L Carver College of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Thiessen?
Dr. Thiessen is a surgical critical care in Chandler, AZ. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Thiessen's address?
Dr. Thiessen is listed at 485 S Dobson Rd Ste 201, Chandler, AZ 85224. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Thiessen?
The number on file is (480) 728-4700. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Thiessen?
Dr. Thiessen's National Provider Identifier is 1053550301. 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
Where did Dr. Thiessen train?
Dr. Thiessen attended University of Iowa, Rj & L Carver College of Medicine, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Thiessen have?
Dr. Thiessen has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Thiessen perform?
According to Medicare billing data, Dr. Thiessen the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Thiessen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Thiessen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.