Dr. John Evans Preston, MD
- Medicare services, 2024
- 404
- Medicare patients, 2024
- 293
- MIPS score, 2024
- 73
- Hospital affiliations
- 1
- Industry payments
- $408
- Practice address
- 308 Hospital Drive, Suite 102, Glen Burnie, MD 21061
- Practice phone
- Call (410) 760-8100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
SurgCenter of Glen Burnie
Surgery Center - Medicare-Certified · Glen Burnie, Maryland
Find Dr. Preston's professional email, personal email and mobile number
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Dr. John Evans Preston is an anesthesiologist in Glen Burnie, Maryland
Dr. Preston practices at SurgCenter of Glen Burnie in Glen Burnie, Maryland.
Dr. Preston's NPI, 1134129190, was assigned on July 29, 2005. Dr. Preston graduated from University of Miami, Lm Miller School of Medicine in 1995. Dr. Preston holds Maryland license D0058442.
- NPI
- 1134129190NPI Registry (opens in a new tab)
- NPI enumeration date
- July 29, 2005
- NPI status
- Active
- Practice phone
- (410) 760-8100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John Evans Preston practices at SurgCenter of Glen Burnie in Glen Burnie, Maryland
Dr. Preston's primary practice is SurgCenter of Glen Burnie, at 308 Hospital Drive, Suite 102, Glen Burnie, MD 21061. The practice phone is (410) 760-8100.
- SurgCenter of Glen Burnie308 Hospital Drive, Suite 102, Glen Burnie, MD 21061Phone(410) 760-8100
Source: Dmand AI Affiliation Data
Dr. John Evans Preston is affiliated with 2 sites of care and 8 medical groups
Dr. Preston's primary practice is SurgCenter of Glen Burnie in Glen Burnie, Maryland. Dr. Preston is also affiliated with University of Maryland Baltimore Washington Medical Center. The medical group on file is Anesthesia Company, LLC. Dmand AI also links Dr. Preston to 7 more 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. John Evans Preston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Preston practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| SurgCenter of Glen Burnie | Available with a free account |
| +1 more site and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Evans Preston is one of 965 anesthesiologists in Maryland
Anesthesiology is Dr. Preston's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Preston is licensed in Maryland.
Specialties and state licenses
- Anesthesiology, MarylandPrimary
Anesthesiologists near Dr. Preston
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. John Evans Preston billed Medicare for 404 services in 2024
CMS data shows 404 Medicare services from Dr. Preston across 12 procedure codes in 2024, for 293 Medicare patients. Medicare paid $43,954 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Preston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 2232024: 26217%
- Surgery
- 2023: 1602024: 12224%
- Imaging
- 2023: 272024: 2026%
Dr. Preston compared with the Maryland median for anesthesiologists, 2024
- Dr. Preston
- Maryland median
- Medicare services
- 404vs 1014.0 times
- Medicare patients
- 293vs 17666% above
Medians across 918 anesthesiologists in Maryland with Dmand AI profiles that report each measure.
Dr. Preston'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Preston and other anesthesiologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Evans Preston treated 293 Medicare patients in 2024, average age 72
CMS counts 293 Medicare patients who saw Dr. Preston in 2024. The largest group is 65 to 74, with 164 patients. 75% of them have arthritis, and 75% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.88, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Preston's median patient age at 57, with 53% women.
Dr. Preston's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Preston's Medicare patients by sex, 2024
- Women17760%
- Men11640%
Chronic conditions among Dr. Preston's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Diabetes33%
- Mood disorders27%
- Depression25%
- Anxiety24%
- Ischemic heart disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Preston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Evans Preston scored 73 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 73 out of 100 for Dr. Preston for performance year 2024, reported as part of a group.
Dr. Preston's MIPS scores, performance year 2024
- 73of 100Final score
- 25of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 88of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John Evans Preston received $408 in industry payments from 2018 to 2023
CMS Open Payments shows 13 general payments to Dr. Preston from 9 drug and device companies from 2018 to 2023. Food and beverage make up the largest share, 100% of the total. Integra LifeSciences Corporation paid the most, $149.
General payments to Dr. Preston by program year, 2018 to 2023
Companies that paid Dr. Preston the most, 2018 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Evans Preston graduated from University of Miami, Lm Miller School of Medicine
Dr. Preston graduated from University of Miami, Lm Miller School of Medicine in 1995.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Evans Preston'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 | Clinician Public Reporting: Overall MIPS Performance (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. John Evans Preston
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. John Evans Preston's NPI number?
Dr. John Evans Preston's NPI number is 1134129190. It was assigned on July 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Evans Preston?
Dr. John Evans Preston is an anesthesiologist in Glen Burnie, Maryland. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. John Evans Preston practice?
Dr. Preston practices at 308 Hospital Drive, Suite 102, Glen Burnie, MD 21061. Dr. Preston's primary practice is SurgCenter of Glen Burnie in Glen Burnie, Maryland. Dmand AI also links Dr. Preston to 7 medical groups.
What is Dr. John Evans Preston's office phone number?
The practice phone on file for Dr. Preston is (410) 760-8100.
What is Dr. John Evans Preston's medical license number?
Dr. Preston holds Maryland license D0058442.
Which hospitals is Dr. John Evans Preston affiliated with?
Dr. Preston is affiliated with University of Maryland Baltimore Washington Medical Center.
What medical group is Dr. John Evans Preston part of?
Dr. Preston is linked to Anesthesia Company, LLC. Dmand AI links Dr. Preston to 7 more medical groups.
Does Dr. John Evans Preston accept Medicare?
Yes. CMS data shows Dr. Preston billed Medicare for 404 services in 2024.
What is Dr. John Evans Preston's MIPS score?
Dr. Preston's MIPS final score for performance year 2024 is 73 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Evans Preston see?
CMS counts 293 Medicare patients who saw Dr. Preston in 2024, with an average age of 72.
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What services does Dr. John Evans Preston bill to Medicare?
In 2024, Dr. Preston's most billed Medicare services were surgery: brain, spine and nerves (64415), anesthesia (01810) and anesthesia (01630).
Where did Dr. John Evans Preston go to medical school?
Dr. Preston graduated from University of Miami, Lm Miller School of Medicine in 1995.
Has Dr. John Evans Preston received payments from drug or device companies?
CMS Open Payments shows $408 in general payments to Dr. Preston from 9 companies from 2018 to 2023. The largest total came from Integra LifeSciences Corporation.
How long has Dr. John Evans Preston been practicing?
Dr. Preston graduated from medical school in 1995, 31 years ago.
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