CHRISTOPHER MICHAEL DIEFENBACH MD
NPI 1437440070
Orthopaedic Surgery - Foot and Ankle Surgery in Flagstaff, AZ

Q: What is Christopher Diefenbach's NPI number?

The NPI number for Christopher Diefenbach is 1437440070. It was assigned to this individual provider in the NPPES registry on May 1, 2011.

Q: What is Christopher Diefenbach's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Foot and Ankle Surgery, with taxonomy code 207XX0004X.

Active since May 01, 2011PECOS EnrolledAccepts Medicare Assignment

77.01/100

CMS Quality Rating

107 E OAK AVE, FLAGSTAFF, AZ 86001(928) 779-7880(928) 913-8801 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 21, 2022, Jun 18, 2019, Jul 12, 2016 (3 updates tracked since 2016).

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About Christopher Michael Diefenbach Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTOPHER MICHAEL DIEFENBACH MD (NPI 1437440070) is an individual foot and ankle surgery provider in Flagstaff, Arizona, licensed in Arizona (53879) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS, is affiliated with Renown Regional Medical Center, and is a graduate of New York University School Of Medicine (2011).

NPPES Registry Identity

NPI1437440070

Entity TypeIndividualMale

Primary Taxonomy207XX0004X

Provider Legal NameCHRISTOPHER MICHAEL DIEFENBACHCredential: MD

Location Address107 E OAK AVEFlagstaff, AZ 86001

Mailing Address1200 N Beaver StFlagstaff, AZ 86001-3118 · (928) 213-6235 · Fax (928) 213-6292

Phone(928) 779-7880

Fax(928) 913-8801

Sole ProprietorNo

Medical School CMSNew York University School Of MedicineGraduated 2011

Enumeration DateMay 1, 2011

Last NPPES UpdateJuly 21, 20223 updates tracked since enumeration

✔ NPI 1437440070 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic Surgery · Foot and Ankle SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code207XX0004X

License✔ Licensed in AZ · 53879

Definition

Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, foot and ankle surgeons deal with adult reconstructive foot and ankle surgery, adult foot and ankle trauma, sports medicine foot and ankle, and children's foot and ankle reconstructive surgery.

Also ListedOrthopaedic SurgeryTaxonomy 207X00000X · License 53879 (AZ)

107 E OAK AVE, Flagstaff, AZ 86001

Open in Google Maps ↗

Other Identifiers 1

Other13767358Caqh

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christopher Michael Diefenbach Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416173216

PECOS Enrollment IDI20160920002051, I20170802001975

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

182 services122 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

147 services111 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

130 services88 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

76 services64 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

49 services49 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

49 services49 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Renown Regional Medical Center

Acute Care Hospitals · Reno, NV

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number290001

Location1155 Mill StreetReno, NV 89502 · Washoe County

Emergency services Birthing friendly

Carson Tahoe Regional Medical Center

Acute Care Hospitals · Carson City, NV

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number290019

Location1600 Medical ParkwayCarson City, NV 89703 · Carson City County

Emergency services Birthing friendly

Northern Nevada Medical Center

Acute Care Hospitals · Sparks, NV

3/5 CMS rating

OwnershipProprietary

CMS Certification Number290032

Location2375 E Prater WaySparks, NV 89434 · Washoe County

Emergency services

Carson Valley Health

Critical Access Hospitals · Gardnerville, NV

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number291306

Location1107 Highway 395Gardnerville, NV 89410 · Douglas County

Emergency services

Humboldt General Hospital

Critical Access Hospitals · Winnemucca, NV

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number291308

Location118 East Haskell StreetWinnemucca, NV 89445 · Humboldt County

Emergency services

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.01/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

59.66

Promoting Interoperability

100

Improvement Activities

Cost

63.71

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Walking boot, pneumatic and/or vacuum, with or without joints, with or without interface material, prefabricated, off-the-shelf L4361

DME-Orthotic Devices · category DF003N

1 supplier13 claims13 services$249.77 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ZACHARY SCOTT HINGER PA-C

Physician Assistant

107 E OAK AVE
FLAGSTAFF, AZ 86001

Coconino County (928) 779-7880

ERIN H ENGEL PA-C

Physician Assistant

107 E OAK AVE
FLAGSTAFF, AZ 86001

Coconino County (928) 779-7880

RYAN INTERNAL MEDICINE PC

Internal Medicine

107 E OAK AVE, SUITE 202
FLAGSTAFF, AZ 86001

Coconino County (928) 773-2560

MS. JULIE MARIE POLZIN RN, NP-C

Nurse Practitioner (Family)

107 E OAK AVE, SUITE 201
FLAGSTAFF, AZ 86001

Coconino County (928) 913-8800

KIMBERLY SARGENT PA

Physician Assistant

107 E OAK AVE
FLAGSTAFF, AZ 86001

Coconino County (928) 779-7880

CHARLES SMITH MD

Family Medicine

107 E OAK AVE
FLAGSTAFF, AZ 86001

Coconino County (928) 913-8800

MR. RAYMOND WOLFGANG LIEBER PA-C

Physician Assistant

107 E OAK AVE
FLAGSTAFF, AZ 86001

Coconino County (928) 779-7880

BRANDON CLARK DO

Orthopaedic Surgery

107 E OAK AVE
FLAGSTAFF, AZ 86001

Coconino County (928) 779-7880

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christopher Diefenbach's NPI number?

The NPI number for Christopher Diefenbach is 1437440070. It was assigned to this individual provider in the NPPES registry on May 1, 2011.

Where is Christopher Diefenbach located?

Christopher Diefenbach practices at 107 E Oak Ave, Flagstaff, AZ 86001. The listed phone number is (928) 779-7880.

What is Christopher Diefenbach's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery, specializing in Foot and Ankle Surgery, with taxonomy code 207XX0004X.

Is Christopher Diefenbach enrolled in Medicare?

Yes. Christopher Diefenbach is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Christopher Diefenbach accept?

Health plans from Blue Cross Blue Shield of Arizona list Christopher Diefenbach as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Christopher Diefenbach affiliated with any hospitals?

According to CMS data, Christopher Diefenbach is affiliated with Renown Regional Medical Center, Carson Tahoe Regional Medical Center, Northern Nevada Medical Center, Carson Valley Health and Humboldt General Hospital.

When was this NPI record last updated?

The NPPES record for Christopher Diefenbach was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.