Schwannoma of the sigmoid colon: a rare cause of sigmoidorectal intussusception (opens in a new tab)
ANZ J Surg
Primary practice
Addiction Medicine & Recovery Services at Oakland Medical Center
Outpatient Addiction Treatment · Oakland, California
Find Dr. Tolan'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. Tolan practices at Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California.
Dr. Tolan's NPI, 1184818684, was assigned on August 28, 2007. Dr. Tolan graduated from UC Davis School of Medicine in 2006. Dr. Tolan's California license number on file is A103257.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tolan's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center, at 380 West MacArthur Boulevard, Oakland, CA 94609. The practice phone is (510) 251-0121.
Source: Dmand AI Affiliation Data
Dr. Tolan's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California. Dr. Tolan is also affiliated with Oakland Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tolan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Addiction Medicine & Recovery Services at Oakland Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Surgery is Dr. Tolan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Tolan is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dmand AI has Dr. Tolan's licenses on file in 2 states: California and Illinois.
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
Across all payers, Dmand AI patient panel data puts Dr. Tolan's median patient age at 62, with 54% women.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 62
Source: Dmand AI Patient Panel Data
In 2024, Dr. Tolan wrote 125 Medicare Part D claims for 50 patients. 99% of them were for generic drugs. CMS names the drug for 109 of them, across 5 drugs with 11 or more claims each, at $1,497 in total drug cost. In 2023, CMS named 132 claims across 5 drugs.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Drugs named by CMS: 5 in 2024, 5 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Tolan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dmand AI links 4 papers to Dr. Tolan in 2013. The most frequent topics are California and Postoperative Complications. Dr. Tolan has published most often in Am Surg. Dr. Tolan's most frequent co-authors are Arezou Tory Yaghoubian, MD, Armen Aboulian, MD and Gary Belzberg, MD.
Topics Dr. Tolan writes about most
ANZ J Surg
See who Dr. Tolan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tolan 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
CMS Open Payments shows 26 general payments to Dr. Tolan from 1 drug or device company from 2018 to 2025. Education make up the largest share, 72% of the total. Intuitive Surgical, Inc. paid the most, $12,436.
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tolan graduated from UC Davis School of Medicine in 2006.
Source: Dmand AI Professional Profile Data
Dr. Tolan is in network with 3 carriers, including Kaiser Permanente, CMS Medicare and VT State Medicaid. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
Source: Dmand AI Insurance Network 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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)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) |
| 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 |
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Dr. Amy M. Tolan's NPI number is 1184818684. It was assigned on August 28, 2007, and it is active in the NPI Registry.
Dr. Amy M. Tolan is a general surgeon in Oakland, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Dr. Tolan practices at 380 West MacArthur Boulevard, Oakland, CA 94609. Dr. Tolan's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California.
The practice phone on file for Dr. Tolan is (510) 251-0121.
Dr. Tolan's California license number on file is A103257, one of the licenses on file in 2 states.
Dmand AI has state licenses on file for Dr. Tolan in California (2008 to 2025) and Illinois (2012 to 2014).
Dr. Tolan is affiliated with Oakland Medical Center.
Dr. Tolan is linked to The Permanente Medical Group, Inc.
Yes. CMS lists Dr. Tolan as accepting Medicare assignment.
Yes. Dr. Tolan is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery.
Dr. Tolan graduated from UC Davis School of Medicine in 2006.
In 2024 Medicare Part D data, Dr. Tolan's most prescribed drugs by claims were Oxycodone HCl, Metronidazole and Gavilyte-C.
CMS Open Payments shows $12,436 in general payments to Dr. Tolan from 1 company from 2018 to 2025. The largest total came from Intuitive Surgical, Inc.
Dr. Tolan graduated from medical school in 2006, 20 years ago.
Dmand AI links 4 publications to Dr. Tolan.
Dr. Tolan's most frequent co-authors are Arezou Tory Yaghoubian, MD (2 shared papers), Armen Aboulian, MD (1 shared paper) and Gary Belzberg, MD (1 shared paper).
Dr. Tolan is in network with 3 carriers, including Kaiser Permanente, CMS Medicare and VT State Medicaid. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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