DR. JOHN MICHAEL WEBB M.D.
NPI 1255535647
Radiology - Nuclear Radiology in Sacramento, CA
NPI Status: Active since June 12, 2007
Contact Information
4860 Y ST
DEPT. OF RADIOLOGY, SUITE 3100
SACRAMENTO, CA
ZIP 95817
Phone: (916) 703-2273
- Individual
- Male
- Years of Experience 21
- Radiology
- Nuclear Radiology
- Accepts Medicare Approved Payment
- PECOS Enrolled
About JOHN WEBB
This page provides the complete NPI Profile along with additional information for John Webb, a provider established in Sacramento, California with a medical specialization in Radiology, focusing in nuclear radiology and more than 21 years of experience. The healthcare provider is registered in the NPI registry with number 1255535647 assigned on June 2007. The practitioner's primary taxonomy code is 2085N0904X with license number A100404 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.
- NPI
- 1255535647
- Provider Name
- DR. JOHN MICHAEL WEBB M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 4860 Y ST DEPT. OF RADIOLOGY, SUITE 3100 SACRAMENTO, CA 95817
- Location Phone
- (916) 703-2273
- Mailing Address
- 4860 Y ST DEPT. OF RADIOLOGY, SUITE 3100 SACRAMENTO, CA 95817
- Mailing Phone
- (916) 703-2273
- Medical School Name
- OTHER
- Graduation Year
- 2005
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 06-12-2007
- Last Update Date
- 02-11-2022
- Code Navigator
Location Map
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.
- A100404
- License State
- CA
- 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.
Medicare Participation & PECOS Enrollment Status
John Webb 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.
John Webb 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: 4587892278
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: I20131231000847
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.
Dxa bone density measurement of hip, pelvis, spine
Dxa bone density measurement of hip, pelvis, spine
Nuclear medicine studies of heart muscle at rest and with stress and spect
X-ray of chest, 1 view
A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.
This service was performed 14 times for 14 patientsA DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.
This service was performed 44 times for 22 patientsNuclear 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 13 times for 13 patientsA 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 14 times for 13 patientsReviews for DR. JOHN MICHAEL WEBB M.D.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
1 | 2 | 5 | 5 | 5 | 3 | 5 | 6 | 4 | 7 |
Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
2 | 2 | 10 | 5 | 10 | 3 | 10 | 6 | 8 | |
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
2 + 2 + 1 + 0 + 5 + 1 + 0 + 3 + 1 + 0 + 6 + 8 + 24 = 53 | |||||||||
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
60 - 53 = 7 | 7 |
The NPI number 1255535647 is valid because the calculated check digit 7 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
NPI | Name / Type | Taxonomy | Address |
---|---|---|---|
1740272541 | DR. TIMOTHY WILLIAM CUTLER PHARM.D. Individual | Pharmacist (Geriatric) | 4860 Y ST SACRAMENTO, CA 95817 (916) 703-4006 |
1528051547 | REGENTS OF THE UNIVERSITY OF CA Organization | Clinic/Center (Pain) | 4860 Y ST SACRAMENTO, CA 95817 (916) 734-6824 |
1861485880 | REGENTS OF THE UNIV OF CA Organization | Psychiatry & Neurology (Neurology) | 4860 Y ST SACRAMENTO, CA 95817 (916) 734-5496 |
1407840705 | ALBERT T LIU MD Individual | Obstetrics & Gynecology | 4860 Y ST STE 2500 SACRAMENTO, CA 95817 (916) 734-6930 |
1609866979 | DR. H. DAVID MOEHRING MD Individual | Orthopaedic Surgery (Orthopaedic Trauma) | 4860 Y ST ACC #3800 SACRAMENTO, CA 95817 (916) 734-2863 |
1689664955 | DR. GEORGE T. RAB MD Individual | Orthopaedic Surgery | 4860 Y ST ACC #3800 SACRAMENTO, CA 95817 (916) 734-2958 |
1497745772 | DR. ROLANDO F. ROBERTO MD Individual | Orthopaedic Surgery (Orthopaedic Surgery of the Spine) | 4860 Y ST ACC #3800 SACRAMENTO, CA 95817 (916) 734-6234 |
1386634665 | DR. ROBERT M SZABO MD Individual | Orthopaedic Surgery (Hand Surgery) | 4860 Y ST ACC #3800 SACRAMENTO, CA 95817 (916) 734-3678 |
1750371142 | SARAH MARSHALL MD Individual | Family Medicine | 4860 Y ST STE 1600 SACRAMENTO, CA 95817 (916) 734-2833 |
1548250848 | DR. STEVEN DAVID BRASS MD Individual | Psychiatry & Neurology (Neurology) | 4860 Y ST SUITE 0100 SACRAMENTO, CA 95817 (916) 734-3588 |
1528059698 | DR. MARK A LEE MD Individual | Orthopaedic Surgery (Orthopaedic Trauma) | 4860 Y ST ACC #3800 SACRAMENTO, CA 95817 (916) 734-2729 |
1912988031 | DR. CHRIS STERLING SHIN M.D. Individual | Physical Medicine & Rehabilitation | 4860 Y ST SUITE 3850 SACRAMENTO, CA 95817 (916) 734-5292 |
1568443695 | DR. HOLLY HONG ZHAO M.D. Individual | Physical Medicine & Rehabilitation | 4860 Y ST SUITE 3850 SACRAMENTO, CA 95817 (916) 734-5294 |
1144201047 | DR. CRAIG MICHEL MCDONALD M.D. Individual | Physical Medicine & Rehabilitation (Pediatric Rehabilitation Medicine) | 4860 Y ST SUITE 3850 SACRAMENTO, CA 95817 (916) 734-5291 |
1073594560 | DR. LOREN T DAVIDSON M.D. Individual | Physical Medicine & Rehabilitation | 4860 Y ST SUITE 3850 SACRAMENTO, CA 95817 (916) 734-5292 |
1578544094 | PROF. ARTHUR CLAYTON HUNTLEY M.D. Individual | Dermatology | 4860 Y ST DEPARTMENT OF DERMATOLOGY SUITE 3400 SACRAMENTO, CA 95817 (916) 734-6795 |
1609857077 | DR. EZRA A AMSTERDAM M.D. Individual | Internal Medicine (Cardiovascular Disease) | 4860 Y ST SUITE 2820 SACRAMENTO, CA 95817 (916) 724-3764 |
1629059092 | DR. RICHARD WANLASS PH.D. Individual | Clinical Neuropsychologist | 4860 Y ST SUITE 1100 SACRAMENTO, CA 95817 (916) 734-3420 |
1326029794 | WILLIAM J. BOMMER M.D. Individual | Internal Medicine (Cardiovascular Disease) | 4860 Y ST SUITE 0200 SACRAMENTO, CA 95817 (916) 734-3761 |
1598747800 | UMA N. SRIVATSA M.D. Individual | Internal Medicine (Cardiovascular Disease) | 4860 Y ST SUITE 2820 SACRAMENTO, CA 95817 (916) 734-3764 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1255535647, enumerated in the NPI registry as an "individual" on June 12, 2007
The provider is located at 4860 Y St Dept. Of Radiology, Suite 3100 Sacramento, Ca 95817 and the phone number is (916) 703-2273
The provider's speciality is Radiology with taxonomy code 2085N0904X with a focus in Nuclear Radiology
The provider has more than 21 years of experience.
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary 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.
The most common procedures or services performed by this practitioner are: Dxa bone density measurement of hip, pelvis, spine, Dxa bone density measurement of hip, pelvis, spine, Nuclear medicine studies of heart muscle at rest and with stress and spect and X-ray of chest, 1 view.
This NPI record was last updated on June 12, 2007. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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