DR. MICHAEL JONATHAN WORSEY MD
NPI 1629091145
Colon & Rectal Surgery in La Jolla, CA

NPI Status: Active since July 25, 2006

Contact Information

9834 GENESEE AVE
201
LA JOLLA, CA
ZIP 92037
Phone: (858) 558-2272
Fax: (858) 558-2285

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  • Individual
  • Male
  • Years of Experience 41
  • Colon & Rectal Surgery
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MICHAEL WORSEY

This page provides the complete NPI Profile along with additional information for Michael Worsey, a provider established in La Jolla, California with a medical specialization in Colon & Rectal Surgery and more than 41 years of experience. The healthcare provider is registered in the NPI registry with number 1629091145 assigned on July 2006. The practitioner's primary taxonomy code is 208C00000X with license number A069016 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1629091145
Provider Name
DR. MICHAEL JONATHAN WORSEY MD
Gender
Male
Entity Type
Individual
Location Address
9834 GENESEE AVE 201 LA JOLLA, CA 92037
Location Phone
(858) 558-2272
Location Fax
(858) 558-2285
Mailing Address
10790 RANCHO BERNARDO RD SAN DIEGO, CA 92127
Mailing Phone
(858) 558-2272
Medical School Name
OTHER
Graduation Year
1985
Is Sole Proprietor?
No
Enumeration Date
07-25-2006
Last Update Date
07-10-2025
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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

Colon & Rectal Surgery

Taxonomy Code
208C00000X
Type
Allopathic & Osteopathic Physicians
License No.
A069016
License State
CA
Taxonomy Description
A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal 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)
1174400000XOther Service Providers

Specialist

A069016 (CA)

Medicare Participation & PECOS Enrollment Status

Michael Worsey 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.

Michael Worsey 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: 8921016809

    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: I20100316000070

    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

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Orthotic Devices

  • DME-Orthotic Devices (DF010N)

    Ostomy skin barrier, liquid (spray, brush, etc.), per oz (HCPCS:A4369)

    4 DME suppliers used 11 Medicare Claims 42 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy skin barrier, powder, per oz (HCPCS:A4371)

    6 DME suppliers used 14 Medicare Claims 41 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each (HCPCS:A4385)

    8 DME suppliers used 48 Medicare Claims 1500 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy pouch, drainable, with extended wear barrier attached, (1 piece), each (HCPCS:A4388)

    4 DME suppliers used 14 Medicare Claims 360 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy deodorant, with or without lubricant, for use in ostomy pouch, per fluid ounce (HCPCS:A4394)

    4 DME suppliers used 16 Medicare Claims 208 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy skin barrier, pectin-based, paste, per ounce (HCPCS:A4406)

    3 DME suppliers used 13 Medicare Claims 77 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy skin barrier, with flange (solid, flexible, or accordion), extended wear, with built-in convexity, 4 x 4 inches or smaller, each (HCPCS:A4407)

    3 DME suppliers used 20 Medicare Claims 980 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy skin barrier, with flange (solid, flexible or accordion), extended wear, without built-in convexity, 4 x 4 inches or smaller, each (HCPCS:A4409)

    4 DME suppliers used 22 Medicare Claims 435 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy pouch, drainable; for use on barrier with non-locking flange, with filter (2 piece system), each (HCPCS:A4425)

    4 DME suppliers used 18 Medicare Claims 660 Services Paid

  • DME-Orthotic Devices (DF010N)

    Ostomy pouch, drainable, with extended wear barrier attached, with filter, (1 piece), each (HCPCS:A5056)

    4 DME suppliers used 21 Medicare Claims 720 Services Paid

  • DME-Orthotic Devices (DF010N)

    Continent device; catheter for continent stoma (HCPCS:A5082)

    3 DME suppliers used 15 Medicare Claims 45 Services Paid

  • DME-Orthotic Devices (DF010N)

    Continent device, stoma absorptive cover for continent stoma (HCPCS:A5083)

    2 DME suppliers used 11 Medicare Claims 1100 Services Paid

  • DME-Orthotic Devices (DF010N)

    Skin barrier, wipes or swabs, each (HCPCS:A5120)

    4 DME suppliers used 16 Medicare Claims 800 Services Paid

  • DME-Orthotic Devices (DF010N)

    Skin barrier; solid, 6 x 6 or equivalent, each (HCPCS:A5121)

    3 DME suppliers used 11 Medicare Claims 450 Services Paid

Durable Medical Equipment

  • DME-Medical/Surgical Supplies (DA000N)

    Adhesive remover, wipes, any type, each (HCPCS:A4456)

    6 DME suppliers used 34 Medicare Claims 1600 Services Paid

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.

Colonoscopy

A colonoscopy is a medical procedure that allows your doctor to examine your colon (the large intestine). It utilizes a thin, flexible tube with a tiny camera on the end, which is inserted through the rectum. This procedure can help identify issues such as polyps, inflammation, or early signs of cancer. It's usually recommended for people over 50 or those with specific risk factors.

This service was performed for 112 patients

Colorectal cancer screening; colonoscopy on individual at high risk

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

This service was performed 20 times for 20 patients

Diagnostic exam of posterior opening using an endoscope

This procedure involves using a thin, flexible instrument called an endoscope to examine the posterior opening area. It helps detect any abnormal conditions or issues. It's a safe, routine exam performed by a healthcare professional.

This service was performed 71 times for 62 patients

Diagnostic exam of lower portion of large bowel using a flexible endoscope

This procedure, known as a sigmoidoscopy, involves using a flexible tube with a camera to examine the lower part of your large bowel. It helps in identifying issues like inflammation, ulcers, or abnormal growths. It's a safe, minimally invasive procedure.

This service was performed 59 times for 51 patients

Established patient office or other outpatient visit, 20-29 minutes

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.

This service was performed 172 times for 123 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 20 times for 15 patients

Follow-up hospital inpatient care per day, typically 35 minutes

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

This service was performed 22 times for 14 patients

Initial hospital inpatient care per day, typically 70 minutes

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

This service was performed 19 times for 19 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

This service was performed 27 times for 27 patients

New patient office or other outpatient visit, 30-44 minutes

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.

This service was performed 97 times for 97 patients

New patient office or other outpatient visit, 45-59 minutes

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.

This service was performed 16 times for 16 patients

Removal of external hemorrhoids by rubber banding

Rubber band ligation is a procedure used to treat external hemorrhoids. A doctor places small rubber bands around the base of the hemorrhoids. This cuts off blood supply, causing them to shrink and fall off, typically within a week.

This service was performed 46 times for 29 patients

Suspension of small bowel using mesh or prosthesis or self tissue

This procedure involves supporting the small bowel using a mesh, prosthesis, or your own tissue. It helps to prevent or treat conditions where the bowel is not properly positioned. This can improve digestion and reduce discomfort.

This service was performed 22 times for 21 patients

Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes

This service involves a physician administering medication to lower your consciousness during a procedure. It's done for your comfort and safety. The drug's effects last about 15 minutes, so additional doses may be given as needed.

This service was performed 21 times for 21 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $23.71 for a new patient copayment and $19.21 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 92037 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $94.87
  • Minimum New Patient Price $62.1
  • Maximum New Patient Price $184.71
  • Average New Patient Copayment $23.71
  • Minimum New Patient Copayment $15.52
  • Maximum New Patient Copayment $46.17

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99213

  • Average Established Patient Price $76.87
  • Minimum Established Patient Price $20.62
  • Maximum Established Patient Price $151.42
  • Average Established Patient Copayment $19.21
  • Minimum Established Patient Copayment $5.15
  • Maximum Established Patient Copayment $37.85

* 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.

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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 1629091145, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 0 + 9 + 2 + 1 + 8 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1629091145.

Other Providers at the Same Location


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

Ophthalmology
9834 GENESEE AVE, SUITE 406
LA JOLLA, CA 92037
Ophthalmology
9834 GENESEE AVE, SUITE 406
LA JOLLA, CA 92037
Obstetrics & Gynecology
9834 GENESEE AVE, SUITE 120
LA JOLLA, CA 92037
Urology
9834 GENESEE AVE, #421
LA JOLLA, CA 92037
Clinical Neuropsychologist
9834 GENESEE AVE, SUITE 427
LA JOLLA, CA 92037
Ophthalmology
9834 GENESEE AVE, SUITE 406
LA JOLLA, CA 92037
Neurological Surgery
9834 GENESEE AVE, SUITE 411
LA JOLLA, CA 92037
Obstetrics & Gynecology
9834 GENESEE AVE, SUITE 400
LA JOLLA, CA 92037
Plastic Surgery
9834 GENESEE AVE, SUITE 210
LA JOLLA, CA 92037
Orthopaedic Surgery
9834 GENESEE AVE, SUITE 228
LA JOLLA, CA 92037
Ophthalmology
9834 GENESEE AVE, SUITE 209
LA JOLLA, CA 92037
Plastic Surgery
9834 GENESEE AVE, #311
LA JOLLA, CA 92037
Psychologist (Clinical)
9834 GENESEE AVE, STE. 427
LA JOLLA, CA 92037
Optometrist
9834 GENESEE AVE, SUITE 428
LA JOLLA, CA 92037
Family Medicine
9834 GENESEE AVE, STE. 125
LA JOLLA, CA 92037
Ophthalmology
9834 GENESEE AVE, SUITE 200
LA JOLLA, CA 92037
Internal Medicine (Nephrology)
9834 GENESEE AVE, SUITE 312
LA JOLLA, CA 92037
Specialist
9834 GENESEE AVE, SUITE 225
LA JOLLA, CA 92037
Psychologist (Clinical)
9834 GENESEE AVE, SUITE 321
LA JOLLA, CA 92037
Ophthalmology
9834 GENESEE AVE, SUITE 200
LA JOLLA, CA 92037

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629091145, enumerated as an "individual" on July 25, 2006.

The provider is located at 9834 GENESEE AVE 201 LA JOLLA, CA 92037 and the phone number is (858) 558-2272.

Colon & Rectal Surgery with taxonomy code 208C00000X.