Dr. Matthew Brian Singer, MD

  • Santa Rosa, CA
  • General surgeon
NPI1487944781PAC ID0840466116
Medicare services, 2024
819
Medicare patients, 2024
468
Publications
7
Hospital affiliations
3
Industry payments
$611
Practice address
1165 Montgomery Dr, Santa Rosa, CA 95405
Practice phone
Call (707) 525-5300
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Providence Santa Rosa Memorial Hospital

Hospital · Santa Rosa, California

See all 5 affiliations

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Dr. Matthew Brian Singer is a general surgeon in Santa Rosa, California

Dr. Singer practices at Providence Santa Rosa Memorial Hospital in Santa Rosa, California, part of Providence Health & Services.

Dr. Singer's NPI, 1487944781, was assigned on April 8, 2011. Dr. Singer graduated from Mercer University School of Medicine in 2009. Dr. Singer holds California license A115554.

NPI and contact details
Medicare PAC ID
0840466116
NPI enumeration date
April 8, 2011
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(707) 525-5300
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
43
Medical school graduation
2009

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Matthew Brian Singer practices at Providence Santa Rosa Memorial Hospital in Santa Rosa, California

Dr. Singer's primary practice is Providence Santa Rosa Memorial Hospital, at 1165 Montgomery Dr, Santa Rosa, CA 95405 in Sonoma County. The practice phone is (707) 525-5300.

Source: Dmand AI Affiliation Data

Dr. Matthew Brian Singer is affiliated with 3 sites of care and 2 medical groups

Dr. Singer's primary practice is Providence Santa Rosa Memorial Hospital in Santa Rosa, California, part of Providence Health & Services. Dr. Singer is also affiliated with Cedars-Sinai Medical Center. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Dr. Singer to 1 more hospital and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Singer

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Matthew Brian Singer's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Singer practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Providence Santa Rosa Memorial HospitalAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Matthew Brian Singer is one of 2,926 general surgeons in California

Surgery is Dr. Singer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Singer is board certified in surgery by the American Board of Surgery. Dr. Singer is licensed in California.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense A115554 · 2011 to 2026 · taxonomy 208600000X

Clinical focus

Dmand AI lists appendectomy, chest trauma, collapsed lung, colon removal, gallbladder removal, multiple traumatic injuries and traumatic coma among the conditions Dr. Singer treats.

General surgeons near Dr. Singer

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Matthew Brian Singer billed Medicare for 819 services in 2024

CMS data shows 819 Medicare services from Dr. Singer across 4 procedure codes in 2024, for 468 Medicare patients. Medicare paid $100,637 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024819
Medicare patients468
Paid by Medicare$100,637
Procedure codes4

Dr. Singer's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 7532024: 8199%

Dr. Singer compared with the California median for general surgeons, 2024

  • Dr. Singer
  • California median
Medicare services
819vs 1664.9 times
Medicare patients
468vs 1213.9 times

Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.

Dr. Singer's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Singer

Need commercial claims for Dr. Singer?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Singer and other general surgeons in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Matthew Brian Singer treated 468 Medicare patients in 2024, average age 77

CMS counts 468 Medicare patients who saw Dr. Singer in 2024. The largest group is 75 to 84, with 157 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 31% are also on Medicaid. Their average risk score is 1.97, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Singer's median patient age at 68, with 43% women.

Medicare patients, 2024468
Average age77
Average risk score1.97
Also on Medicaid31%

Dr. Singer's Medicare patients by age, 2024

Dr. Singer's Medicare patients by sex, 2024

  • Women22348%
  • Men24552%

Chronic conditions among Dr. Singer's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis51%
  4. Mood disorders43%
  5. Atrial fibrillation40%
  6. Anxiety39%
  7. Ischemic heart disease38%
  8. Depression37%

Share of Medicare patients with each condition. A patient can have several.

Dr. Singer's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women43%
  • Men54%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Dr. Matthew Brian Singer takes part in Medicare

Dr. Singer accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Coronary artery bypass graft (CABG): 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Matthew Brian Singer has 7 publications on record

Dmand AI links 7 papers to Dr. Singer, published from 2011 to 2019. 2013 was the busiest year, with 2. Dr. Singer has published most often in J Trauma Acute Care Surg. Dr. Singer's most frequent co-authors are Douglas Zhi-Wen Liou, MD, Rex Tong Hyun Chung, MD and Alexandra Gangi, MD.

Papers7
Years published2011 to 2019

Dr. Singer's papers by year, 2011 to 2019

Dr. Singer's most frequent co-authors

Recent publications by Dr. Singer

See all 7 publications and co-authors

See who Dr. Singer researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Singer works with, so you can find a warm path to the right general surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Matthew Brian Singer received $611 in industry payments from 2016 to 2018

CMS Open Payments shows 14 general payments to Dr. Singer from 8 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 100% of the total. Lifecell Corporation paid the most, $309.

General payments to Dr. Singer by program year, 2016 to 2018

Companies that paid Dr. Singer the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Singer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Matthew Brian Singer graduated from Mercer University School of Medicine

Dr. Singer graduated from Mercer University School of Medicine in 2009.

  1. Medical schoolMercer University School of Medicine
  2. Board certified in surgeryAmerican Board of Surgery
  3. Board certified in surgical critical careAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Matthew Brian Singer accepts plans from 12 insurance carriers

Dr. Singer is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Elevance
  • Regence Health Plans
  • Alliant Health Plans
  • +4 more carriersWith a free account

Plan types Dr. Singer accepts, by number of carriers

  1. Medicare7
  2. PPO7
  3. HMO6
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Matthew Brian Singer's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Matthew Brian Singer

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Matthew Brian Singer's NPI number?

Dr. Matthew Brian Singer's NPI number is 1487944781. It was assigned on April 8, 2011, and it is active in the NPI Registry.

What kind of doctor is Dr. Matthew Brian Singer?

Dr. Matthew Brian Singer is a general surgeon in Santa Rosa, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Matthew Brian Singer practice?

Dr. Singer practices at 1165 Montgomery Dr, Santa Rosa, CA 95405. Dr. Singer's primary practice is Providence Santa Rosa Memorial Hospital in Santa Rosa, California, part of Providence Health & Services. Dmand AI also links Dr. Singer to 1 hospital and 1 medical group.

What is Dr. Matthew Brian Singer's office phone number?

The practice phone on file for Dr. Singer is (707) 525-5300.

What is Dr. Matthew Brian Singer's medical license number?

Dr. Singer holds California license A115554.

Which hospitals is Dr. Matthew Brian Singer affiliated with?

Dr. Singer practices at Providence Santa Rosa Memorial Hospital in Santa Rosa, California. Dr. Singer is also affiliated with Cedars-Sinai Medical Center. Dmand AI links Dr. Singer to 1 more hospital.

What medical group is Dr. Matthew Brian Singer part of?

Dr. Singer is linked to St. Jude Heritage Medical Group. Dmand AI links Dr. Singer to 1 more medical group.

Does Dr. Matthew Brian Singer accept Medicare?

Yes. CMS data shows Dr. Singer billed Medicare for 819 services in 2024, and Dr. Singer accepts Medicare assignment.

How many Medicare patients does Dr. Matthew Brian Singer see?

CMS counts 468 Medicare patients who saw Dr. Singer in 2024, with an average age of 77.

Is Dr. Matthew Brian Singer board certified?

Yes. Dr. Singer is board certified in surgery by the American Board of Surgery.

Show 7 more questionsShow fewer questions

What services does Dr. Matthew Brian Singer bill to Medicare?

In 2024, Dr. Singer's most billed Medicare services were hospital inpatient care (99233), critical care (99291) and hospital inpatient care (99223).

Where did Dr. Matthew Brian Singer go to medical school?

Dr. Singer graduated from Mercer University School of Medicine in 2009.

Has Dr. Matthew Brian Singer received payments from drug or device companies?

CMS Open Payments shows $611 in general payments to Dr. Singer from 8 companies from 2016 to 2018. The largest total came from Lifecell Corporation.

How long has Dr. Matthew Brian Singer been practicing?

Dr. Singer graduated from medical school in 2009, 17 years ago.

Does Dr. Matthew Brian Singer do research?

Dmand AI links 7 publications to Dr. Singer, published from 2011 to 2019.

Who does Dr. Matthew Brian Singer publish with?

Dr. Singer's most frequent co-authors are Douglas Zhi-Wen Liou, MD (2 shared papers), Rex Tong Hyun Chung, MD (1 shared paper) and Alexandra Gangi, MD (1 shared paper).

What insurance does Dr. Matthew Brian Singer accept?

Dr. Singer is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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