Surg Infect (Larchmt)
Dr. Matthew Brian Singer, MD
- 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
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Singer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
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
- 1487944781NPI Registry (opens in a new tab)
- 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.
- Providence Santa Rosa Memorial Hospital1165 Montgomery Dr, Santa Rosa, CA 95405 · Sonoma CountyPhone(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.
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.
| Site | EHR vendor and product |
|---|---|
| Providence Santa Rosa Memorial Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Providence Health & Services and 6.2K+ hospitals, with verified contacts in the same login.
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, CaliforniaPrimary
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.
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.
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.
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.
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
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Mood disorders43%
- Atrial fibrillation40%
- Anxiety39%
- Ischemic heart disease38%
- 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
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.
Dr. Singer's papers by year, 2011 to 2019
Dr. Singer's most frequent co-authors
- Douglas Zhi-Wen Liou, MD2 shared papers
- Rex Tong Hyun Chung, MD1 shared paper
- Alexandra Gangi, MD1 shared paper
Recent publications by Dr. Singer
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.
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.
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.
- Medical school
- Board certified in surgery
- Board certified in surgical critical care
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
- Medicare7
- PPO7
- HMO6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Matthew Brian Singer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors 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-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand 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.
Selling to surgery practices?
See general surgeons in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card