JONATHAN E SHIRMAN DO
NPI 1326606898
Family Medicine - Addiction Medicine in Oxnard, CA

NPI Status: Active since May 30, 2019

Contact Information

3641 W 5TH ST
OXNARD, CA
ZIP 93030
Phone: (805) 985-5505

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  • Individual
  • Male
  • Years of Experience 7
  • Family Medicine
  • Addiction Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About JONATHAN SHIRMAN

This page provides the complete NPI Profile along with additional information for Jonathan Shirman, a provider established in Oxnard, California with a medical specialization in Family Medicine, focusing in addiction medicine and more than 7 years of experience. He graduated from Lake Erie College Of Osteopathic Medicine, Bradenton in 2019. The healthcare provider is registered in the NPI registry with number 1326606898 assigned on May 2019. The practitioner's primary taxonomy code is 207QA0401X with license number 20A22896 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1326606898
Provider Name
JONATHAN E SHIRMAN DO
Gender
Male
Entity Type
Individual
Location Address
3641 W 5TH ST OXNARD, CA 93030
Location Phone
(805) 985-5505
Mailing Address
4457 PAXTON PL CALABASAS, CA 91302
Mailing Phone
(818) 322-5081
Medical School Name
LAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, BRADENTON
Graduation Year
2019
Is Sole Proprietor?
No
Enumeration Date
05-30-2019
Last Update Date
10-30-2025
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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

Family Medicine Addiction Medicine

Taxonomy Code
207QA0401X
Type
Allopathic & Osteopathic Physicians
License No.
20A22896
License State
CA
Taxonomy Description
A family medicine physician who specializes in the diagnosis and treatment of addictions.

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)
1208D00000XAllopathic & Osteopathic Physicians

General Practice

318974 (NY)
2390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

(NY)
3390200000XStudent, Health Care

Student in an Organized Health Care Education/Training Program

 

Medicare Participation & PECOS Enrollment Status

Jonathan Shirman 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.

Jonathan Shirman 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: 3971046996

    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: I20240717003848

    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

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $35.18 for a new patient copayment and $27.18 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 93030 ZIP code area.

New Patients Visit Costs *

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

  • Average New Patient Price $140.72
  • Minimum New Patient Price $62.32
  • Maximum New Patient Price $185.36
  • Average New Patient Copayment $35.18
  • Minimum New Patient Copayment $15.58
  • Maximum New Patient Copayment $46.34

Established Patients Visit Costs *

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

  • Average Established Patient Price $108.74
  • Minimum Established Patient Price $20.68
  • Maximum Established Patient Price $151.85
  • Average Established Patient Copayment $27.18
  • Minimum Established Patient Copayment $5.17
  • Maximum Established Patient Copayment $37.96

* 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 JONATHAN E SHIRMAN DO

  • 5 out of 5 stars - Review by Tina ***** on December 09, 2025

    Dr. Shirman is respectful, attentive, knowledgeable, thorough, ready & willing to work with you to get you the care you need. I have extensive and complicated medical issues. He listens, takes your input seriously, and together we've been working on getting me better, not just stable. I have zero complaints about this doctor! Staff could be better, but that's not under his control. He's a 5 Star!!

  • 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 1326606898, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

    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
    3
    Unchanged
    Pos 3
    2
    Doubled → 4
    Pos 4
    6
    Unchanged
    Pos 5
    6
    Doubled → 12 → 1 + 2
    Pos 6
    0
    Unchanged
    Pos 7
    6
    Doubled → 12 → 1 + 2
    Pos 8
    8
    Unchanged
    Pos 9
    9
    Doubled → 18 → 1 + 8
    Check
    8
    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 6 → 12 → 3 6 → 12 → 3 9 → 18 → 9

    Step 2: Add all digits plus the NPI constant

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

    2 + 3 + 4 + 6 + 1 + 2 + 0 + 1 + 2 + 8 + 1 + 8 + 24 = 62

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

    The next multiple of ten after 62 is 70. The difference is the calculated check digit.

    70 - 62 = 8
    This NPI is valid
    The calculated check digit is 8, which matches the last digit of 1326606898.

    Other Providers at the Same Location


    The following 9 providers are registered at the same or a nearby location.

    Obstetrics & Gynecology
    3641 W 5TH ST
    OXNARD, CA 93030
    Pediatrics
    3641 W 5TH ST
    OXNARD, CA 93030
    Dermatology
    3641 W 5TH ST
    OXNARD, CA 93030
    Family Medicine
    3641 W 5TH ST
    OXNARD, CA 93030
    Internal Medicine
    3641 W 5TH ST
    OXNARD, CA 93030
    Psychiatry & Neurology (Neurology)
    3641 W 5TH ST
    OXNARD, CA 93030
    Dermatology (MOHS-Micrographic Surgery)
    3641 W 5TH ST
    OXNARD, CA 93030
    Pediatrics
    3641 W 5TH ST
    OXNARD, CA 93030
    Clinic/Center (Multi-Specialty)
    3641 W 5TH ST
    OXNARD, CA 93030

    Frequently Asked Questions

    The NPI number assigned to this healthcare provider is 1326606898, enumerated as an "individual" on May 30, 2019.

    The provider is located at 3641 W 5TH ST OXNARD, CA 93030 and the phone number is (805) 985-5505.

    Family Medicine with taxonomy code 207QA0401X and a focus in Addiction Medicine.