JOHN W. WALSH MD
NPI 1164500260
Pathology - Anatomic Pathology in Walnut Creek, CA

NPI Status: Active since November 02, 2006

Contact Information

1425 S MAIN ST
WALNUT CREEK, CA
ZIP 94596
Phone: (925) 295-4000

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  • Individual
  • Male
  • Years of Experience 62
  • Pathology
  • Anatomic Pathology
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About JOHN WALSH

This page provides the complete NPI Profile along with additional information for John Walsh, a provider established in Walnut Creek, California with a medical specialization in Pathology, focusing in anatomic pathology and more than 62 years of experience. He graduated from Medical College Of Wisconsin in 1964. The healthcare provider is registered in the NPI registry with number 1164500260 assigned on November 2006. The practitioner's primary taxonomy code is 207ZP0101X with license number G11029 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1164500260
Provider Name
JOHN W. WALSH MD
Gender
Male
Entity Type
Individual
Location Address
1425 S MAIN ST WALNUT CREEK, CA 94596
Location Phone
(925) 295-4000
Mailing Address
1800 HARRISON ST FL 7 OAKLAND, CA 94612
Mailing Phone
(510) 625-6262
Medical School Name
MEDICAL COLLEGE OF WISCONSIN
Graduation Year
1964
Is Sole Proprietor?
No
Enumeration Date
11-02-2006
Last Update Date
12-22-2021
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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

Pathology Anatomic Pathology

Taxonomy Code
207ZP0101X
Type
Allopathic & Osteopathic Physicians
License No.
G11029
License State
CA
Taxonomy Description
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Insurance Plans Accepted

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

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
00G110290MEDICAID (05)CA 

Medicare Participation & PECOS Enrollment Status

John Walsh 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 Walsh 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: 7810186632

    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: I20110110000907

    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.

Pathology examination of tissue using a microscope, intermediate complexity

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

This service was performed 20 times for 15 patients

Pathology examination of tissue using a microscope, intermediate complexity

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

This service was performed 22 times for 11 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $38.45 for a new patient copayment and $29.87 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 94596 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $153.83
  • Minimum New Patient Price $69
  • Maximum New Patient Price $202.35
  • Average New Patient Copayment $38.45
  • Minimum New Patient Copayment $17.25
  • Maximum New Patient Copayment $50.58

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $119.48
  • Minimum Established Patient Price $23.44
  • Maximum Established Patient Price $166.46
  • Average Established Patient Copayment $29.87
  • Minimum Established Patient Copayment $5.86
  • Maximum Established Patient Copayment $41.61

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for JOHN W. WALSH MD

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NPI 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 1164500260, we treat the final digit (0) 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 40. The final step is to find the difference between that total and the next multiple of ten (40 - 40 = 0).

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
1
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
4
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
0
Unchanged
Pos 7
0
Doubled → 0
Pos 8
2
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
0
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 6 → 12 → 3 5 → 10 → 1 0 → 0 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 2 + 4 + 1 + 0 + 0 + 0 + 2 + 1 + 2 + 24 = 40

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

The next multiple of ten after 40 is 40. The difference is the calculated check digit.

40 - 40 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1164500260.

Other Providers at the Same Location


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

Nurse Practitioner (Adult Health)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Practitioner (Adult Health)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Practitioner (Women's Health)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Practitioner (Pediatrics)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Pathology (Anatomic Pathology & Clinical Pathology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Nurse Practitioner (Gerontology)
1425 S MAIN ST, MOB 3RD FLOOR SURGERY CLINIC
WALNUT CREEK, CA 94596
Psychiatry & Neurology (Neurology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine
1425 S MAIN ST
WALNUT CREEK, CA 94596
Pediatrics (Neonatal-Perinatal Medicine)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine (Hematology & Oncology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Podiatrist
1425 S MAIN ST
WALNUT CREEK, CA 94596
Orthopaedic Surgery
1425 S MAIN ST
WALNUT CREEK, CA 94596
Preventive Medicine (Occupational Medicine)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Podiatrist
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine
1425 S MAIN ST
WALNUT CREEK, CA 94596
Surgery
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine
1425 S MAIN ST
WALNUT CREEK, CA 94596
Emergency Medicine
1425 S MAIN ST
WALNUT CREEK, CA 94596
Pediatrics (Pediatric Endocrinology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Internal Medicine (Nephrology)
1425 S MAIN ST
WALNUT CREEK, CA 94596

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1164500260, enumerated as an "individual" on November 02, 2006.

The provider is located at 1425 S MAIN ST WALNUT CREEK, CA 94596 and the phone number is (925) 295-4000.

Pathology with taxonomy code 207ZP0101X and a focus in Anatomic Pathology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.