DR. MICHAEL JOSEPH KRZYZANIAK M.D.
NPI 1164626594
Surgery - Trauma Surgery in San Diego, CA

Q: What is Michael Krzyzaniak's NPI number?

The NPI number for Michael Krzyzaniak is 1164626594. It was assigned to this individual provider in the NPPES registry on June 11, 2007.

Q: What is Michael Krzyzaniak's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Trauma Surgery, with taxonomy code 2086S0127X.

Active since June 11, 2007PECOS EnrolledAccepts Medicare Assignment

550 WASHINGTON ST STE 641, SAN DIEGO, CA 92103(619) 299-3100 Get Directions Write a Review

NPPES record last updated: April 8, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 8, 2024, Nov 16, 2015 (2 updates tracked since 2015).

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About Dr. Michael Joseph Krzyzaniak M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MICHAEL JOSEPH KRZYZANIAK M.D. (NPI 1164626594) is an individual trauma surgery provider in San Diego, California, licensed in California (A146490) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Wisconsin School Of Medicine (2005).

NPPES Registry Identity

NPI1164626594

Entity TypeIndividualMale

Primary Taxonomy2086S0127X

Provider Legal NameDR. MICHAEL JOSEPH KRZYZANIAKCredential: M.D.

Location Address550 WASHINGTON ST STE 641San Diego, CA 92103-2229

Mailing Address550 Washington St Ste 641San Diego, CA 92103-2229 · (619) 299-3100

Phone(619) 299-3100

Sole ProprietorYes

Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2005

Enumeration DateJune 11, 2007

Last NPPES UpdateApril 8, 20242 updates tracked since enumeration

NPPES CertifiedApril 8, 2024

✔ NPI 1164626594 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySurgery · Trauma SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code2086S0127X

License✔ Licensed in CA · A146490

Definition

Trauma surgery is a recognized subspecialty of general surgery. Trauma surgeons are physicians who have completed a five-year general surgery residency and usually continue with a one to two year fellowship in trauma and/or surgical critical care, typically leading to additional board certification in surgical critical care. There is no trauma surgery board certification at this point. To obtain board certification in surgical critical care, a fellowship in surgical critical care or anesthesiology critical care must be completed during or after general surgery residency.

Also ListedIndependent Medical ExaminerTaxonomy 202C00000X · License 50424 (WI)

Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License A146490 (CA)

550 WASHINGTON ST STE 641, San Diego, CA 92103

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Michael Joseph Krzyzaniak M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID244544419

PECOS Enrollment IDI20171102001985

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Michael Krzyzaniak reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

On Call Specialists Medical Group Of San Diego, Inc.

0.1 mi

Specialist

4077 FIFTH AVE
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
218 clinicians in this Medicare group

NPI 1962175836 (619) 294-8111

Trauma Team Medical Group Incorporated

0.1 mi

Emergency Medicine

4077 FIFTH AVE
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
14 clinicians in this Medicare group

NPI 1417907510 (619) 294-8111

Emergency And Acute Care Medical Corporation

3.4 mi

Emergency Medicine

7901 FROST ST
San Diego, CA 92123

Reassigned Medicare billing, California enrollment
1,437 clinicians in this Medicare group

NPI 1437103942 (858) 939-3400

Oc Trauma Inc

63 mi

Trauma Surgery

26732 CROWN VALLEY PKWY STE 440
Mission Viejo, CA 92691

Reassigned Medicare billing, California enrollment
28 clinicians in this Medicare group

NPI 1720516628 (949) 364-1007

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

68 services49 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

35 services27 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

25 services25 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

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.

19 services19 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

16 services14 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

15 services15 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan

Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…

31%26 patients2/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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