Dr. Devon Sittlow Callahan, MD
- Medicare services, 2024
- 86
- Medicare patients, 2024
- 54
- Part D claims, 2021
- 12
- Publications
- 3
- MIPS score, 2024
- 93
- Practice address
- 8700 Beverly Blvd, Los Angeles, CA 90048
- Practice phone
- Call (310) 423-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Callahan'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. Devon Sittlow Callahan is a general surgeon in West Hollywood, California
Dr. Callahan practices at Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.
Dr. Callahan's NPI, 1528315181, was assigned on August 13, 2012. Dr. Callahan graduated from Vagelos College of Physicians and Surgeons in 2012. Dr. Callahan's California license number on file is A128652.
- NPI
- 1528315181NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961774468
- NPI enumeration date
- August 13, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 423-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Devon Sittlow Callahan practices at Cedars-Sinai Medical Center in Los Angeles, California
Dr. Callahan's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, Los Angeles, CA 90048 in Los Angeles County. The practice phone is (310) 423-5000.
- Cedars-Sinai Medical Center8700 Beverly Blvd, Los Angeles, CA 90048 · Los Angeles CountyPhone(310) 423-5000
Source: Dmand AI Affiliation Data
Dr. Devon Sittlow Callahan is affiliated with 3 sites of care and 2 medical groups
Dr. Callahan's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. Dr. Callahan is also affiliated with Cedars-Sinai Marina Hospital. The medical group on file is Cedars-Sinai Medical Center. Dmand AI also links Dr. Callahan to 1 more group practice or clinic 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. Devon Sittlow Callahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callahan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedars-Sinai Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Devon Sittlow Callahan is one of 2,926 general surgeons in California
Surgery is Dr. Callahan's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Callahan is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Callahan's licenses on file in 2 states: California and Minnesota.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Minnesota license
Clinical focus
Dmand AI lists abdominal adhesion surgery, acute gallbladder or bile duct inflammation, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal, groin hernia surgery and removal of damaged skin or skin graft among the conditions Dr. Callahan treats.
General surgeons near Dr. Callahan
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. Devon Sittlow Callahan billed Medicare for 86 services in 2024
CMS data shows 86 Medicare services from Dr. Callahan across 3 procedure codes in 2024, for 54 Medicare patients. Medicare paid $11,220 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Callahan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 882024: 862%
Dr. Callahan compared with the California median for general surgeons, 2024
- Dr. Callahan
- California median
- Medicare services
- 86vs 16648% below
- Medicare patients
- 54vs 12155% below
- Part D claims
- 12vs 3465% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Callahan'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. Callahan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Callahan and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Devon Sittlow Callahan treated 54 Medicare patients in 2024, average age 76
CMS counts 54 Medicare patients who saw Dr. Callahan in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 52% are also on Medicaid. Their average risk score is 3.67, 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. Callahan's median patient age at 55, with 41% women.
Dr. Callahan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Callahan's Medicare patients by sex, 2024
- Women3056%
- Men2444%
Chronic conditions among Dr. Callahan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease63%
- Arthritis57%
- Heart failure56%
- Diabetes52%
- Ischemic heart disease50%
- Anxiety44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Callahan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women41%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Devon Sittlow Callahan wrote 12 Medicare Part D claims in 2021
In 2021, Dr. Callahan wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $35 in total drug cost. In 2019, CMS named 21 claims across 1 drug.
Dr. Callahan's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2021
- 2019
- 2021
- Claims for drugs CMS names
- 2019: 212021: 1243%
Drugs named by CMS: 1 in 2021, 1 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Devon Sittlow Callahan scored 93 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Callahan for performance year 2024, reported as part of a group. Dr. Callahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Callahan's MIPS scores, performance year 2024
- 93of 100Final score
- 77.8of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 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); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Devon Sittlow Callahan has 3 publications on record
Dmand AI links 3 papers to Dr. Callahan, published from 2014 to 2016. Dr. Callahan's most frequent co-authors are Hamid Alipour, MD, Scott David Bricker, MD and Areti Tillou, MD.
Dr. Callahan's papers by year, 2014 to 2016
Dr. Callahan's most frequent co-authors
Recent publications by Dr. Callahan
See who Dr. Callahan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Callahan 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. Devon Sittlow Callahan received $5,223 in industry payments from 2016 to 2025
CMS Open Payments shows 32 general payments to Dr. Callahan from 9 drug and device companies from 2016 to 2025. Education make up the largest share, 48% of the total. Intuitive Surgical, Inc. paid the most, $4,435. It also lists 2 research payments totaling $990 in 2017.
General payments to Dr. Callahan by program year, 2016 to 2025
General payments to Dr. Callahan by kind, 2016 to 2025
- Education$2,50048%
- Travel and lodging$1,87636%
- Consulting fees$4889%
- Food and beverage$3607%
Companies that paid Dr. Callahan the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Devon Sittlow Callahan graduated from Vagelos College of Physicians and Surgeons
Dr. Callahan graduated from Vagelos College of Physicians and Surgeons in 2012.
- Medical school
- Board certified in surgery
- Board certified in surgical critical care
Source: Dmand AI Professional Profile Data
Dr. Devon Sittlow Callahan accepts plans from 16 insurance carriers
Dr. Callahan is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Medica. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Medica
- United Healthcare
- Elevance
- HCSC
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- +8 more carriersWith a free account
Plan types Dr. Callahan accepts, by number of carriers
- PPO11
- HMO7
- Medicare6
- POS6
- EPO4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Devon Sittlow Callahan'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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)Clinician Public Reporting: Overall MIPS Performance (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. Devon Sittlow Callahan
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. Devon Sittlow Callahan's NPI number?
Dr. Devon Sittlow Callahan's NPI number is 1528315181. It was assigned on August 13, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Devon Sittlow Callahan?
Dr. Devon Sittlow Callahan is a general surgeon in West Hollywood, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Devon Sittlow Callahan practice?
Dr. Callahan practices at 8700 Beverly Blvd, Los Angeles, CA 90048. Dr. Callahan's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. Dmand AI also links Dr. Callahan to 1 group practice or clinic and 1 medical group.
What is Dr. Devon Sittlow Callahan's office phone number?
The practice phone on file for Dr. Callahan is (310) 423-5000.
What is Dr. Devon Sittlow Callahan's medical license number?
Dr. Callahan's California license number on file is A128652, one of the licenses on file in 2 states.
Which states has Dr. Devon Sittlow Callahan been licensed in?
Dmand AI has state licenses on file for Dr. Callahan in California (2014 to 2025) and Minnesota (2016 to 2023).
Which hospitals is Dr. Devon Sittlow Callahan affiliated with?
Dr. Callahan practices at Cedars-Sinai Medical Center in Los Angeles, California. Dr. Callahan is also affiliated with Cedars-Sinai Marina Hospital.
What medical group is Dr. Devon Sittlow Callahan part of?
Dr. Callahan is linked to Cedars-Sinai Medical Center. Dmand AI links Dr. Callahan to 1 more medical group.
Does Dr. Devon Sittlow Callahan accept Medicare?
Yes. CMS data shows Dr. Callahan billed Medicare for 86 services in 2024, and Dr. Callahan accepts Medicare assignment.
What is Dr. Devon Sittlow Callahan's MIPS score?
Dr. Callahan's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.
Show 10 more questionsShow fewer questions
How many Medicare patients does Dr. Devon Sittlow Callahan see?
CMS counts 54 Medicare patients who saw Dr. Callahan in 2024, with an average age of 76.
Is Dr. Devon Sittlow Callahan board certified?
Yes. Dr. Callahan is board certified in surgery by the American Board of Surgery.
What services does Dr. Devon Sittlow Callahan bill to Medicare?
In 2024, Dr. Callahan's most billed Medicare services were critical care (99291), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. Devon Sittlow Callahan go to medical school?
Dr. Callahan graduated from Vagelos College of Physicians and Surgeons in 2012.
What drugs does Dr. Devon Sittlow Callahan prescribe most?
In 2021 Medicare Part D data, Dr. Callahan's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Devon Sittlow Callahan received payments from drug or device companies?
CMS Open Payments shows $5,223 in general payments to Dr. Callahan from 9 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Devon Sittlow Callahan been practicing?
Dr. Callahan graduated from medical school in 2012, 14 years ago.
Does Dr. Devon Sittlow Callahan do research?
Dmand AI links 3 publications to Dr. Callahan, published from 2014 to 2016.
Who does Dr. Devon Sittlow Callahan publish with?
Dr. Callahan's most frequent co-authors are Hamid Alipour, MD (1 shared paper), Scott David Bricker, MD (1 shared paper) and Areti Tillou, MD (1 shared paper).
What insurance does Dr. Devon Sittlow Callahan accept?
Dr. Callahan is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Medica. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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