Dr. Michael Sherwin Walston, MD
- Medicare services, 2024
- 45
- Medicare patients, 2024
- 151
- Hospital affiliations
- 2
- Industry payments
- $47
- Medical groups
- 3
- Practice address
- 4620 East Camp Lowell Drive, Tucson, AZ 85712
- Practice phone
- Call (520) 618-6058
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Camp Lowell Surgery Center
Surgery Center - Medicare-Certified · Tucson, Arizona
Find Dr. Walston's professional email, personal email and mobile number
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Dr. Michael Sherwin Walston is an anesthesiologist in Tucson, Arizona
Dr. Walston practices at Camp Lowell Surgery Center in Tucson, Arizona.
Dr. Walston's NPI, 1891095030, was assigned on October 21, 2010. Dr. Walston graduated from University of Arizona College of Medicine in 2010. Dr. Walston holds Arizona license 47974.
- NPI
- 1891095030NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173767142
- NPI enumeration date
- October 21, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (520) 618-6058
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Sherwin Walston practices at Camp Lowell Surgery Center in Tucson, Arizona
Dr. Walston's primary practice is Camp Lowell Surgery Center, at 4620 East Camp Lowell Drive, Tucson, AZ 85712. The practice phone is (520) 618-6058.
- Camp Lowell Surgery Center4620 East Camp Lowell Drive, Tucson, AZ 85712Phone(520) 618-6058
Source: Dmand AI Affiliation Data
Dr. Michael Sherwin Walston is affiliated with 6 sites of care and 3 medical groups
Dr. Walston's primary practice is Camp Lowell Surgery Center in Tucson, Arizona. Dr. Walston is also affiliated with Tucson Medical Center. The medical group on file is IAS Arizona PLLC. Dmand AI also links Dr. Walston to 1 more hospital, 3 group practices and clinics and 2 medical groups, 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. Michael Sherwin Walston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walston practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Camp Lowell Surgery Center | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Sherwin Walston is one of 1,244 anesthesiologists in Arizona
Anesthesiology is Dr. Walston's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Walston is licensed in Arizona.
Specialties and state licenses
- Anesthesiology, ArizonaPrimary
Anesthesiologists near Dr. Walston
Counts of anesthesiologists 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. Michael Sherwin Walston billed Medicare for 45 services in 2024
CMS data shows 45 Medicare services from Dr. Walston across 2 procedure codes in 2024, for 151 Medicare patients. Medicare paid $3,964 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Walston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1802024: 4575%
- Surgery
- 2023: 132024: 0100%
Dr. Walston compared with the Arizona median for anesthesiologists, 2024
- Dr. Walston
- Arizona median
- Medicare services
- 45vs 7238% below
- Medicare patients
- 151vs 13314% above
Medians across 1,218 anesthesiologists in Arizona with Dmand AI profiles that report each measure.
Dr. Walston'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. Walston?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walston and other anesthesiologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Sherwin Walston treated 151 Medicare patients in 2024, average age 76
CMS counts 151 Medicare patients who saw Dr. Walston in 2024. The largest group is 65 to 74, with 68 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.21, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Walston's median patient age at 69, with 57% women.
Dr. Walston's Medicare patients by age, 2024
Dr. Walston's Medicare patients by sex, 2024
- Women7147%
- Men8053%
Chronic conditions among Dr. Walston's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis49%
- Diabetes28%
- Ischemic heart disease28%
- Chronic kidney disease23%
- Mood disorders23%
- Anxiety21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Michael Sherwin Walston takes part in Medicare
Dr. Walston accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael Sherwin Walston received $47 in industry payments from 2018 to 2021
CMS Open Payments shows 2 general payments to Dr. Walston from 2 drug and device companies from 2018 to 2021. Food and beverage make up the largest share, 100% of the total. Davol Inc. paid the most, $36.
General payments to Dr. Walston by program year, 2018 to 2021
Companies that paid Dr. Walston the most, 2018 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Sherwin Walston graduated from University of Arizona College of Medicine
Dr. Walston graduated from University of Arizona College of Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Sherwin Walston'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Michael Sherwin Walston
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. Michael Sherwin Walston's NPI number?
Dr. Michael Sherwin Walston's NPI number is 1891095030. It was assigned on October 21, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Sherwin Walston?
Dr. Michael Sherwin Walston is an anesthesiologist in Tucson, Arizona. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Michael Sherwin Walston practice?
Dr. Walston practices at 4620 East Camp Lowell Drive, Tucson, AZ 85712. Dr. Walston's primary practice is Camp Lowell Surgery Center in Tucson, Arizona. Dmand AI also links Dr. Walston to 1 hospital, 3 group practices and clinics and 2 medical groups.
What is Dr. Michael Sherwin Walston's office phone number?
The practice phone on file for Dr. Walston is (520) 618-6058.
What is Dr. Michael Sherwin Walston's medical license number?
Dr. Walston holds Arizona license 47974.
Which hospitals is Dr. Michael Sherwin Walston affiliated with?
Dr. Walston is affiliated with Tucson Medical Center. Dmand AI links Dr. Walston to 1 more hospital.
What medical group is Dr. Michael Sherwin Walston part of?
Dr. Walston is linked to IAS Arizona PLLC. Dmand AI links Dr. Walston to 2 more medical groups.
Does Dr. Michael Sherwin Walston accept Medicare?
Yes. CMS data shows Dr. Walston billed Medicare for 45 services in 2024, and Dr. Walston accepts Medicare assignment.
How many Medicare patients does Dr. Michael Sherwin Walston see?
CMS counts 151 Medicare patients who saw Dr. Walston in 2024, with an average age of 76.
What services does Dr. Michael Sherwin Walston bill to Medicare?
In 2024, Dr. Walston's most billed Medicare services were anesthesia (00142) and anesthesia (00811).
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Where did Dr. Michael Sherwin Walston go to medical school?
Dr. Walston graduated from University of Arizona College of Medicine in 2010.
Has Dr. Michael Sherwin Walston received payments from drug or device companies?
CMS Open Payments shows $47 in general payments to Dr. Walston from 2 companies from 2018 to 2021. The largest total came from Davol Inc.
How long has Dr. Michael Sherwin Walston been practicing?
Dr. Walston graduated from medical school in 2010, 16 years ago.
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