Physician Profile
Unclaimed ProfileAbout KRETZER
Ryan Michael Kretzer, M.D. is a healthcare provider in Tucson, AZ specializing in neurosurgery. Ryan trained at Johns Hopkins University School of Medicine, graduating in 2004. Ryan is also listed as specializing in neurological surgery. According to Medicare claims data, Ryan cared for 406 Medicare patients across 468 services.
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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (520) 881-8400
- Email not available
Practice Locations
6567 E CARONDELET DR SUITE 305
Tucson, AZ 85710
Procedures Most Often Billed to Medicare
468 services · 406 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Fusion of additional segment of spine | Procedure | 22614 |
74 |
| Computer-assisted spinal procedure | Procedure | 61783 |
56 |
| Fusion of spine in lower back | Procedure | 22612 |
34 |
| Placement of stabilizing device to back, 3-6 spine bone segments | Procedure | 22842 |
33 |
| Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment | Procedure | 63047 |
30 |
| Partial removal of spine bone with exploration and/or release of lower spinal cord or nerves, 1-2 segments | Procedure | 63005 |
16 |
| Placement of stabilizing device to back of 1 spine bone in neck | Procedure | 22840 |
16 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
99 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
92 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
18 |
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.
Other neurosurgery specialists in Tucson 8
Same specialty, same city.
Trained at Johns Hopkins University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 2004 at Johns Hopkins University School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Fusion of additional segment of spine 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What does Dr. Kretzer specialize in?
Dr. Kretzer is a neurosurgery in Tucson, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEUROSURGERY”.
NPI registry
Where is Dr. Kretzer located?
Dr. Kretzer is listed at 6567 E CARONDELET DR SUITE 305, Tucson, AZ 85710. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Kretzer's phone number?
The number on file is (520) 881-8400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Kretzer's NPI number?
Dr. Kretzer's National Provider Identifier is 1861545766. 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. Kretzer go to medical school?
Dr. Kretzer attended Johns Hopkins University School of Medicine, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Kretzer been practicing?
Dr. Kretzer has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Kretzer do most often?
According to Medicare billing data, Dr. Kretzer performs procedures including fusion of additional segment of spine, computer-assisted spinal procedure and fusion of spine in lower back, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Kretzer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Kretzer. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.