Physician Profile
Christopher M. Diefenbach, MD
Unclaimed ProfileAbout Dr. Diefenbach
Christopher M. Diefenbach, MD practices orthopaedic foot & ankle surgery in Flagstaff, AZ. Christopher is a 2011 graduate of New York University School of Medicine. Christopher is also listed as specializing in orthopaedic surgery. According to Medicare claims data, Christopher cared for 538 Medicare patients across 720 services. The services billed most often include x-ray of foot, minimum of 3 views, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and x-ray of ankle, minimum of 3 views.
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
- (928) 779-7880
- Email not available
Practice Locations
107 E OAK AVE
Flagstaff, AZ 86001
1485 N Turquoise Dr Ste 200
Flagstaff, AZ 86001
Procedures Most Often Billed to Medicare
720 services · 538 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Incision or partial removal of foot bone (other than big toe) to straighten toe | Procedure | 28308 |
28 | More often than most peers in Orthopaedic Foot & Ankle Surgery |
| Removal of deep implant from bone | Procedure | 20680 |
17 | As often as other peers in Orthopaedic Foot & Ankle Surgery |
| Lengthening of calf muscle | Procedure | 27687 |
11 | Less often than most peers in Orthopaedic Foot & Ankle Surgery |
| X-ray of foot, minimum of 3 views | Imaging | 73630 |
182 | As often as other peers in Orthopaedic Foot & Ankle Surgery |
| X-ray of ankle, minimum of 3 views | Imaging | 73610 |
130 | As often as other peers in Orthopaedic Foot & Ankle Surgery |
| Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | Drug given | J0702 |
31 | Less often than most peers in Orthopaedic Foot & Ankle Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
147 | As often as other peers in Orthopaedic Foot & Ankle Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
76 | As often as other peers in Orthopaedic Foot & Ankle Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
49 | As often as other peers in Orthopaedic Foot & Ankle Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
49 | As often as other peers in Orthopaedic Foot & Ankle Surgery |
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 New York University School of Medicine 4
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2011 at New York University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Incision or partial removal of foot bone (other than big toe) to straighten toe 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What is Dr. Diefenbach's specialty?
Dr. Diefenbach is an orthopaedic foot & ankle surgeon in Flagstaff, AZ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Foot & Ankle Surgery”.
NPI registry
Where can I find Dr. Diefenbach?
Dr. Diefenbach is listed at 107 E Oak Ave, Flagstaff, AZ 86001. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Diefenbach?
The number on file is (928) 779-7880. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Diefenbach's NPI number?
Dr. Diefenbach's National Provider Identifier is 1437440070. 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. Diefenbach's medical education?
Dr. Diefenbach attended New York University School of Medicine, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Diefenbach been practicing?
Dr. Diefenbach has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Diefenbach known for?
According to Medicare billing data, Dr. Diefenbach performs procedures including incision or partial removal of foot bone to straighten toe, removal of deep implant from bone and lengthening of calf muscle; reads or performs imaging such as x-ray of foot, minimum of 3 views and x-ray of ankle, minimum of 3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Diefenbach confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Diefenbach. 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.