Dr. Gary Neil Mann, MD
- Medicare services, 2024
- 37
- Medicare patients, 2024
- 54
- Part D claims, 2024
- 18
- Publications
- 39
- Hospital affiliations
- 1
- Practice address
- 344 S Hauser Blvd, Los Angeles, CA 90036
- Practice phone
- Call (716) 845-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Roswell Park Cancer Institute
Los Angeles, California
Find Dr. Mann'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. Gary Neil Mann is a general surgeon in Los Angeles, California
Dr. Mann practices at Roswell Park Cancer Institute in Los Angeles, California.
Dr. Mann's NPI, 1760567572, was assigned on October 27, 2006. Dr. Mann graduated from University of the Witwatersrand in 1989. Dr. Mann's New York license number on file is 286574.
- NPI
- 1760567572NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951436302
- NPI enumeration date
- October 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (716) 845-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gary Neil Mann practices at Roswell Park Cancer Institute in Los Angeles, California
Dr. Mann's primary practice is Roswell Park Cancer Institute, at 344 S Hauser Blvd, Los Angeles, CA 90036 in Los Angeles County. The practice phone is (716) 845-2300.
- Roswell Park Cancer Institute344 S Hauser Blvd, Los Angeles, CA 90036 · Los Angeles CountyPhone(716) 845-2300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gary Neil Mann is affiliated with 2 sites of care and 1 medical group
Dr. Mann's primary practice is Roswell Park Cancer Institute in Los Angeles, California. Dr. Mann is also affiliated with Roswell Park Comprehensive Cancer Center. The medical group on file is Roswell Park Comprehensive Cancer Center.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gary Neil Mann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mann practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Roswell Park Cancer Institute | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gary Neil Mann is one of 2,926 general surgeons in California
Surgery is Dr. Mann's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Mann is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Mann's licenses on file in 4 states: New York, California, Texas and Washington.
Specialties and state licenses
- Surgery, New YorkPrimary
- California license
- Texas license
- Surgical oncology, Washington
Clinical focus
Dmand AI lists colonoscopy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal and gastrointestinal obstruction among the conditions Dr. Mann treats.
General surgeons near Dr. Mann
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. Gary Neil Mann billed Medicare for 37 services in 2024
CMS data shows 37 Medicare services from Dr. Mann across 2 procedure codes in 2024, all of them office visits, for 54 Medicare patients. Medicare paid $2,948 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 122024: 37208%
Dr. Mann compared with the California median for general surgeons, 2024
- Dr. Mann
- California median
- Medicare services
- 37vs 16678% below
- Medicare patients
- 54vs 12155% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Mann'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. Mann?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mann and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gary Neil Mann treated 54 Medicare patients in 2024, average age 71
CMS counts 54 Medicare patients who saw Dr. Mann in 2024. The largest group is 65 to 74, with 38 patients. 75% of them have high blood pressure, and 72% have high cholesterol. Their average risk score is 2.02, 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. Mann's median patient age at 70, with 56% women.
Dr. Mann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mann's Medicare patients by sex, 2024
- Women3463%
- Men2037%
Chronic conditions among Dr. Mann's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Cancer61%
- Arthritis48%
- Anxiety31%
- Chronic kidney disease30%
- Diabetes28%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gary Neil Mann wrote 18 Medicare Part D claims in 2024
In 2024, Dr. Mann wrote 18 Medicare Part D claims. 94% of them were for generic drugs.
Dr. Mann's Part D claims by kind of drug, 2024
- Generic17 claims94%
- Brand-name and other1 claims6%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Gary Neil Mann takes part in Medicare
Dr. Mann 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)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Gary Neil Mann has 39 publications on record
Dmand AI links 39 papers to Dr. Mann, published from 2006 to 2024. 2017 was the busiest year, with 5. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols, Chemotherapy, Adjuvant and Cytoreduction Surgical Procedures. Dr. Mann has published most often in Ann Surg Oncol. Dr. Mann's most frequent co-authors are Keith Francis Fournier, MD, Michael J. Overman, MD and Richard Eldon Royal, MD.
Dr. Mann's papers by year, 2014 to 2024
Topics Dr. Mann writes about most
- Antineoplastic Combined Chemotherapy Protocols
- Chemotherapy, Adjuvant
- Cytoreduction Surgical Procedures
- Peritoneal Neoplasms
- Appendiceal Neoplasms
- Breast Neoplasms
- Chemotherapy, Cancer, Regional Perfusion
- Hyperthermia, Induced
Dr. Mann's most frequent co-authors
- Keith Francis Fournier, MD6 shared papers
- Michael J. Overman, MD5 shared papers
- Richard Eldon Royal, MD4 shared papers
Recent publications by Dr. Mann
J Pain Symptom Manage
See who Dr. Mann researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mann 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. Gary Neil Mann received $360 in industry payments from 2016 to 2019
CMS Open Payments shows 11 general payments to Dr. Mann from 7 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Intuitive Surgical, Inc. paid the most, $148.
General payments to Dr. Mann by program year, 2016 to 2019
Companies that paid Dr. Mann the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gary Neil Mann has 1 award and honors on record
Dmand AI lists 1 award for Dr. Mann.
Awards and honors for Dr. Mann
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Gary Neil Mann graduated from University of the Witwatersrand
Dr. Mann graduated from University of the Witwatersrand in 1989. Dr. Mann is a member of ACS.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Gary Neil Mann accepts plans from 7 insurance carriers
Dr. Mann is in network with 7 carriers, including Aetna, Excellus BlueCross BlueShield and MVP Health Care. EPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- MVP Health Care
- Highmark
- AK State Medicaid
- CMS Medicare
- NY State Medicaid
Plan types Dr. Mann accepts, by number of carriers
- EPO4
- PPO4
- HMO3
- Medicaid3
- Medicare3
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Gary Neil Mann'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Part D prescribing | Medicare Part D Prescribers - 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Gary Neil Mann
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. Gary Neil Mann's NPI number?
Dr. Gary Neil Mann's NPI number is 1760567572. It was assigned on October 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gary Neil Mann?
Dr. Gary Neil Mann is a general surgeon in Los Angeles, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Gary Neil Mann practice?
Dr. Mann practices at 344 S Hauser Blvd, Los Angeles, CA 90036. Dr. Mann's primary practice is Roswell Park Cancer Institute in Los Angeles, California.
What is Dr. Gary Neil Mann's office phone number?
The practice phone on file for Dr. Mann is (716) 845-2300.
What is Dr. Gary Neil Mann's medical license number?
Dr. Mann's New York license number on file is 286574, one of the licenses on file in 4 states.
Which states has Dr. Gary Neil Mann been licensed in?
Dmand AI has state licenses on file for Dr. Mann in New York (2016 to 2025), California (since 1998), Texas (2015 to 2017) and Washington (2000 to 2017).
Which hospitals is Dr. Gary Neil Mann affiliated with?
Dr. Mann is affiliated with Roswell Park Comprehensive Cancer Center.
What medical group is Dr. Gary Neil Mann part of?
Dr. Mann is linked to Roswell Park Comprehensive Cancer Center.
Does Dr. Gary Neil Mann accept Medicare?
Yes. CMS data shows Dr. Mann billed Medicare for 37 services in 2024, and Dr. Mann accepts Medicare assignment.
How many Medicare patients does Dr. Gary Neil Mann see?
CMS counts 54 Medicare patients who saw Dr. Mann in 2024, with an average age of 71.
Show 8 more questionsShow fewer questions
Is Dr. Gary Neil Mann board certified?
Yes. Dr. Mann is board certified in surgery by the American Board of Surgery.
What services does Dr. Gary Neil Mann bill to Medicare?
In 2024, Dr. Mann's most billed Medicare services were office visit, established patient (99215) and office visit, established patient (99213).
Where did Dr. Gary Neil Mann go to medical school?
Dr. Mann graduated from University of the Witwatersrand in 1989.
Has Dr. Gary Neil Mann received payments from drug or device companies?
CMS Open Payments shows $360 in general payments to Dr. Mann from 7 companies from 2016 to 2019. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Gary Neil Mann been practicing?
Dr. Mann graduated from medical school in 1989, 37 years ago.
Does Dr. Gary Neil Mann do research?
Dmand AI links 39 publications to Dr. Mann, published from 2006 to 2024.
Who does Dr. Gary Neil Mann publish with?
Dr. Mann's most frequent co-authors are Keith Francis Fournier, MD (6 shared papers), Michael J. Overman, MD (5 shared papers) and Richard Eldon Royal, MD (4 shared papers).
What insurance does Dr. Gary Neil Mann accept?
Dr. Mann is in network with 7 carriers, including Aetna, Excellus BlueCross BlueShield and MVP Health Care. EPO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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