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MATTHEW CLARENCE BREEGGEMANN M.D.
NPI 1083077549
Internal Medicine - Nephrology in San Francisco, CA

Active since April 01, 2016PECOS EnrolledAccepts Medicare Assignment
91.85/100
CMS Quality Rating
400 PARNASSUS AVE # B1, SAN FRANCISCO, CA 94143(415) 353-2507(415) 476-3381 Get Directions Write a Review

NPPES record last updated: August 15, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 15, 2024, Apr 2, 2019, Apr 1, 2016 (3 updates tracked since 2016).

About Matthew Clarence Breeggemann M.d. NPPES

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

MATTHEW CLARENCE BREEGGEMANN M.D. (NPI 1083077549) is an individual nephrology provider in San Francisco, California, licensed in California (A168104) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS and is a graduate of Creighton University School Of Medicine (2016).

NPPES Registry Identity

NPI1083077549
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameMATTHEW CLARENCE BREEGGEMANNCredential: M.D.
Location Address400 PARNASSUS AVE # B1San Francisco, CA 94143-2202
Mailing Address400 Parnassus Ave # B1San Francisco, CA 94143-2202 · (415) 353-2507 · Fax (415) 476-3381
Phone(415) 353-2507
Fax(415) 476-3381
Sole ProprietorNo
Medical School CMSCreighton University School Of MedicineGraduated 2016
Enumeration DateApril 1, 2016
Last NPPES UpdateAugust 15, 20243 updates tracked since enumeration
NPPES CertifiedAugust 15, 2024
✔ NPI 1083077549 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in CA · A168104
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedHospitalistTaxonomy 208M00000X · License 19117 (NH)
400 PARNASSUS AVE # B1, San Francisco, CA 94143
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.Insurance ›

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

Matthew Clarence Breeggemann 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 ID2466741830
PECOS Enrollment IDI20220713003713
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

4

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

University Of California San Francisco
Same address
Surgery
400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 5,645 clinicians in this Medicare group
NPI 1346329380 (415) 353-2161
Ucsf Medical Group Business Services
Same address
Internal Medicine
400 PARNASSUS AVE
San Francisco, CA 94122
  • Reassigned Medicare billing, California enrollment
  • 5,544 clinicians in this Medicare group
NPI 1477624104 (415) 353-2808
Regents Of The University Of California
0.1 mi
Endocrinology, Diabetes & Metabolism
505 PARNASSUS AVE
San Francisco, CA 94143
  • Reassigned Medicare billing, California enrollment
  • 2,112 clinicians in this Medicare group
NPI 1376613943 (415) 353-2350
University Of California Sfgh Medical Group
2.9 mi
Medical Oncology
995 POTRERO AVE, BLDG.80, RM 229
San Francisco, CA 94110
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1063487122 (California)
  • 637 clinicians in this Medicare group
NPI 1356696215 (415) 476-4082

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 10

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.

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
249 services148 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
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.
226 services92 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
126 services62 patients
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.
116 services58 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
95 services95 patients
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212
This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.
87 services59 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

91.85/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality83.53
Promoting Interoperability100
Improvement Activities40
Cost68.01

Other Providers at the Same Location NPPES 3

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

BENJAMIN J LEE MD, MAS
Internal Medicine (Nephrology)
400 PARNASSUS AVE # B1
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2507
TARA DELA CRUZ LIWAG NP
Nurse Practitioner
400 PARNASSUS AVE # B1
SAN FRANCISCO, CA 94143
San Francisco County (415) 353-2507
DR. GABRIEL LOEB M.D., PH.D.
Internal Medicine (Nephrology)
400 PARNASSUS AVE # B1
SAN FRANCISCO, CA 94143
San Francisco County (415) 476-1812

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Breeggemann's NPI number?

The NPI number for Matthew Breeggemann is 1083077549. It was assigned to this individual provider in the NPPES registry on April 1, 2016.

Where is Matthew Breeggemann located?

Matthew Breeggemann practices at 400 Parnassus Ave # B1, San Francisco, CA 94143. The listed phone number is (415) 353-2507.

What is Matthew Breeggemann's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Matthew Breeggemann enrolled in Medicare?

Yes. Matthew Breeggemann is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Matthew Breeggemann's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Breeggemann reassigns Medicare benefits to 4 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA), Regents Of The University Of California (San Francisco, CA) and University Of California Sfgh Medical Group (San Francisco, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Breeggemann's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Breeggemann accept?

Health plans from Taro Health list Matthew Breeggemann as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Matthew Breeggemann was last updated on August 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.