Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. KENNETH R HOFSTETTER M.D.
NPI 1891753091
Radiology - Nuclear Radiology in Phoenix, AZ

Active since May 04, 2006PECOS Enrolled
11209 N TATUM BLVD, SUITE # 110, PHOENIX, AZ 85028(602) 248-8002(602) 248-8399 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 13, 2026, Apr 30, 2026 (2 updates tracked since 2026).

  • Individual
  • Male
  • Years of Experience 57
  • Radiology
  • Nuclear Radiology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled
  • Medicare Quality Reporting

About KENNETH HOFSTETTER

This page provides the complete NPI Profile along with additional information for Kenneth Hofstetter, a provider established in Phoenix, Arizona with a medical specialization in Radiology, focusing in nuclear radiology and more than 57 years of experience. He graduated from Ohio State University College Of Medicine in 1970. The healthcare provider is registered in the NPI registry with number 1891753091 assigned on May 2006. The practitioner's primary taxonomy code is 2085N0904X with license number 6321 (AZ). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1891753091
Provider Name
DR. KENNETH R HOFSTETTER M.D.
Gender
Male
Entity Type
Individual
Location Address
11209 N TATUM BLVD SUITE # 110 PHOENIX, AZ 85028
Location Phone
(602) 248-8002
Location Fax
(602) 248-8399
Mailing Address
PO BOX 14687 SCOTTSDALE, AZ 85267
Mailing Phone
(480) 991-8100
Mailing Fax
(480) 922-1028
Medical School Name
OHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduation Year
1970
Is Sole Proprietor?
No
Enumeration Date
05-04-2006
Last Update Date
07-13-2026
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Location Map

Secondary Locations

  • 13677 W McDowell Rd
    Goodyear, AZ 85395
    (623) 882-1500

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Radiology Nuclear Radiology

Taxonomy Code
2085N0904X
Type
Allopathic & Osteopathic Physicians
License No.
6321
License State
AZ
Taxonomy Description
A radiologist who is involved in the analysis and imaging of radionuclides and radiolabeled substances in vitro and in vivo for diagnosis and the administration of radionuclides and radiolabeled substances for the treatment of disease.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12085R0202XAllopathic & Osteopathic Physicians

Radiology
Diagnostic Radiology

6321 (AZ)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • AZ Blue AdvanceHealth Bronze Focus (4 Free PCP Visits) - HMO
  • AZ Blue AdvanceHealth Bronze Neighborhood (4 Free PCP Visits) - HMO
  • AZ Blue AdvanceHealth Gold Focus (4 Free PCP Visits) - HMO
  • AZ Blue AdvanceHealth Gold Neighborhood (4 Free PCP Visits) - HMO
  • AZ Blue AdvanceHealth Silver Focus (4 Free PCP Visits) - HMO
  • AZ Blue AdvanceHealth Silver Neighborhood (4 Free PCP Visits) - HMO
  • AZ Blue EverydayHealth Gold Focus (1 Free PCP Visit) - HMO
  • AZ Blue EverydayHealth Gold Neighborhood (1 Free PCP Visit) - HMO
  • AZ Blue EverydayHealth Prosano Gold ($0 Prosano Health Visits) - HMO
  • AZ Blue EverydayHealth Prosano Silver ($0 Prosano Health Visits) - HMO
  • AZ Blue EverydayHealth Silver Focus (1 Free PCP Visit) - HMO
  • AZ Blue EverydayHealth Silver Neighborhood (1 Free PCP Visit) - HMO
  • AZ Blue Portfolio Bronze HSA Focus - HMO
  • AZ Blue Portfolio Bronze HSA Neighborhood - HMO
  • AZ Blue StandardHealth Bronze Focus - HMO
  • AZ Blue StandardHealth Bronze Neighborhood - HMO
  • AZ Blue StandardHealth Gold Focus - HMO
  • AZ Blue StandardHealth Gold Neighborhood - HMO
  • AZ Blue StandardHealth Silver Focus - HMO
  • AZ Blue StandardHealth Silver Neighborhood - HMO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
244947OTHER (01)AZAHCCCS
1Z7049OTHER (01)AZHEALTHNET
AZ0324990OTHER (01)AZBCBS

Medicare Participation & PECOS Enrollment Status

Kenneth Hofstetter is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Kenneth Hofstetter is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 648252213

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20040614001301

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Ct scan head or brain without contrast

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

This service was performed 39 times for 39 patients

Ct scan of abdomen and pelvis with contrast

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

This service was performed 52 times for 51 patients

Ct scan of abdomen and pelvis without contrast

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

This service was performed 35 times for 35 patients

Ct scan of blood vessels of abdomen and pelvis with contrast

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

This service was performed 12 times for 12 patients

Ct scan of blood vessels of chest with contrast

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

This service was performed 72 times for 72 patients

Ct scan of chest without contrast

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

This service was performed 25 times for 25 patients

Ct scan of lower spine without contrast

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

This service was performed 21 times for 21 patients

Ct scan of middle spine without contrast

A CT scan of the middle spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your mid-spine area. This scan helps doctors identify issues like fractures, tumors, or infections. No dye is used in this procedure.

This service was performed 12 times for 12 patients

Ct scan of upper spine without contrast

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

This service was performed 46 times for 46 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

This service was performed 25 times for 25 patients

X-ray of abdomen, 1 view

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

This service was performed 25 times for 25 patients

X-ray of ankle, minimum of 3 views

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.

This service was performed 12 times for 12 patients

X-ray of chest, 1 view

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

This service was performed 444 times for 362 patients

X-ray of chest, 2 views

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

This service was performed 65 times for 65 patients

X-ray of foot, minimum of 3 views

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.

This service was performed 21 times for 21 patients

X-ray of hand, minimum of 3 views

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

This service was performed 14 times for 12 patients

X-ray of hip, 2-3 views

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

This service was performed 26 times for 25 patients

X-ray of knee, 3 views

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

This service was performed 11 times for 11 patients

X-ray of ribs on side of body, minimum of 3 views

This is a diagnostic procedure where a machine emits a small amount of radiation to capture images of your ribs from at least three different angles. It helps to identify issues like fractures or infections. It's a quick, painless process.

This service was performed 18 times for 18 patients

X-ray of shoulder, minimum of 2 views

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

This service was performed 16 times for 16 patients

Quality Reporting

The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.

Quality Measure Performance Number of Patients
Implementation of improvements that contribute to more timely communication of test resultsYesN/A
Timely communication of test results defined as timely identification of abnormal test results with timely follow-up.
Participation in an AHRQ-listed patient safety organization.YesN/A
Participation in an AHRQ-listed patient safety organization.
Use of QCDR data for ongoing practice assessment and improvementsYesN/A
Use of QCDR data, for ongoing practice assessment and improvements in patient safety.
Use of QCDR to promote standard practices, tools and processes in practice for improvement in care coordinationYesN/A
Participation in a Qualified Clinical Data Registry, demonstrating performance of activities that promote use of standard practices, tools and processes for quality improvement (e.g., documented preventative screening and vaccinations that can be shared across MIPS eligible clinician or groups).

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NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1891753091, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
5
Unchanged
Pos 7
3
Doubled → 6
Pos 8
0
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 7 → 14 → 5 3 → 6 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 8 + 1 + 8 + 1 + 1 + 4 + 5 + 6 + 0 + 1 + 8 + 24 = 69

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1891753091.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Family Medicine
11209 N TATUM BLVD, 175
PHOENIX, AZ 85028
Obstetrics & Gynecology
11209 N TATUM BLVD, STE 255
PHOENIX, AZ 85028
Obstetrics & Gynecology
11209 N TATUM BLVD, #255
PHOENIX, AZ 85028
Nurse Practitioner
11209 N TATUM BLVD, SUITE 260
PHOENIX, AZ 85028
Radiology (Diagnostic Radiology)
11209 N TATUM BLVD, SUITE # 140
PHOENIX, AZ 85028
Specialist
11209 N TATUM BLVD, SUITE 260
PHOENIX, AZ 85028
Nurse Practitioner (Family)
11209 N TATUM BLVD, SUITE 180
PHOENIX, AZ 85028
Internal Medicine (Hematology & Oncology)
11209 N TATUM BLVD, SUITE 260
PHOENIX, AZ 85028
Radiology (Vascular & Interventional Radiology)
11209 N TATUM BLVD, SUITE # 110
PHOENIX, AZ 85028
Physical Therapist
11209 N TATUM BLVD, STE B-120
PHOENIX, AZ 85028
Physical Therapist (Orthopedic)
11209 N TATUM BLVD, B-120
PHOENIX, AZ 85028
Nurse Practitioner (Adult Health)
11209 N TATUM BLVD, SUITE 260
PHOENIX, AZ 85028
Social Worker (Clinical)
11209 N TATUM BLVD, #260
PHOENIX, AZ 85028
Chiropractor
11209 N TATUM BLVD, STE 140
PHOENIX, AZ 85028
Obstetrics & Gynecology
11209 N TATUM BLVD, #255
PHOENIX, AZ 85028
Family Medicine
11209 N TATUM BLVD, SUITE 180
PHOENIX, AZ 85028
Nurse Practitioner (Family)
11209 N TATUM BLVD, SUITE 180
PHOENIX, AZ 85028
Otolaryngology (Plastic Surgery within the Head & Neck)
11209 N TATUM BLVD, SUITE 275
PHOENIX, AZ 85028
Internal Medicine (Medical Oncology)
11209 N TATUM BLVD, SUITE 260
PHOENIX, AZ 85028
Internal Medicine (Hematology & Oncology)
11209 N TATUM BLVD, 260
PHOENIX, AZ 85028

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891753091, enumerated as an "individual" on May 04, 2006.

The provider is located at 11209 N TATUM BLVD SUITE # 110 PHOENIX, AZ 85028 and the phone number is (602) 248-8002.

Radiology with taxonomy code 2085N0904X and a focus in Nuclear Radiology.

The provider might be accepting Accepts: Blue Cross Blue Shield of Arizona, Medicare,. Please consult your insurance carrier or call the provider to verify.