Dr. John M. Barkley, MD
- Medicare services, 2024
- 6,923
- Medicare patients, 2024
- 2,612
- Publications
- 2
- MIPS score, 2024
- 100
- Hospital affiliations
- 5
- Practice address
- 1301 Wonder World Drive, San Marcos, TX 78666
- Practice phone
- Call (512) 753-3511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Barkley'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. John M. Barkley is a diagnostic radiologist in San Marcos, Texas
Dr. Barkley practices at CHRISTUS Santa Rosa Hospital - San Marcos in San Marcos, Texas, part of CHRISTUS Health.
Dr. Barkley's NPI, 1235129867, was assigned on October 25, 2005. Dr. Barkley graduated from Baylor College Of Medicine in 1999. Dr. Barkley holds Texas license L1264.
- NPI
- 1235129867NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739169046
- NPI enumeration date
- October 25, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (512) 753-3511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John M. Barkley practices at CHRISTUS Santa Rosa Hospital - San Marcos in San Marcos, Texas
Dr. Barkley's primary practice is CHRISTUS Santa Rosa Hospital - San Marcos, at 1301 Wonder World Drive, San Marcos, TX 78666 in Hays County. The practice phone is (512) 753-3511.
- CHRISTUS Santa Rosa Hospital - San Marcos1301 Wonder World Drive, San Marcos, TX 78666 · Hays CountyPhone(512) 753-3511
Source: Dmand AI Affiliation Data
Dr. John M. Barkley is affiliated with 6 sites of care and 2 medical groups
Dr. Barkley's primary practice is CHRISTUS Santa Rosa Hospital - San Marcos in San Marcos, Texas, part of CHRISTUS Health. Dr. Barkley is also affiliated with St. David's Medical Center. The medical group on file is Singleton Associates PA. Dmand AI also links Dr. Barkley to 3 more hospitals, 1 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. John M. Barkley's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barkley practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHRISTUS Santa Rosa Hospital - San Marcos | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John M. Barkley is one of 2,616 diagnostic radiologists in Texas
Diagnostic radiology is Dr. Barkley's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Barkley is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Barkley's licenses on file in 3 states: Texas, Hawaii and Massachusetts.
Specialties and state licenses
- Diagnostic radiology, TexasPrimary
- Hawaii license
- Massachusetts license
Diagnostic radiologists near Dr. Barkley
Counts of diagnostic radiologists 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 M. Barkley billed Medicare for 6,923 services in 2024
CMS data shows 6,923 Medicare services from Dr. Barkley across 43 procedure codes in 2024, for 2,612 Medicare patients. Medicare paid $77,728 for them.
Dr. Barkley's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 11,4672024: 3,64268%
- Imaging
- 2023: 3,8412024: 3,11219%
- Tests and treatments
- 2023: 1192024: 9421%
- Surgery
- 2023: 402024: 5948%
- Lab and pathology
- 2023: 382024: 1658%
Where Dr. Barkley's Medicare services took place, 2024
- In an office4,16960%
- In a facility2,75440%
Dr. Barkley compared with the Texas median for diagnostic radiologists, 2024
- Dr. Barkley
- Texas median
- Medicare services
- 6,923vs 1,8743.7 times
- Medicare patients
- 2,612vs 1,2842.0 times
Medians across 2,414 diagnostic radiologists in Texas with Dmand AI profiles that report each measure.
Dr. Barkley'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. Barkley?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Barkley and other diagnostic radiologists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John M. Barkley treated 2,612 Medicare patients in 2024, average age 76
CMS counts 2,612 Medicare patients who saw Dr. Barkley in 2024. The largest group is 75 to 84, with 1,029 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.85, 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. Barkley's median patient age at 68, with 54% women.
Dr. Barkley's Medicare patients by age, 2024
Dr. Barkley's Medicare patients by sex, 2024
- Women1,43255%
- Men1,18045%
Chronic conditions among Dr. Barkley's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease45%
- Mood disorders37%
- Anxiety35%
- Diabetes35%
- Atrial fibrillation34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barkley's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John M. Barkley scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Barkley for performance year 2024, reported as part of a group. Dr. Barkley accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Barkley's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John M. Barkley has 2 publications on record
Dmand AI links 2 papers to Dr. Barkley in 2019. Dr. Barkley's most frequent co-author is Nabeel Farhataziz, MD.
Dr. Barkley's most frequent co-authors
Recent publications by Dr. Barkley
Cardiovasc Intervent Radiol
See who Dr. Barkley researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Barkley works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John M. Barkley received $612 in industry payments from 2021 to 2024
CMS Open Payments shows 14 general payments to Dr. Barkley from 8 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $161.
General payments to Dr. Barkley by program year, 2021 to 2024
Companies that paid Dr. Barkley the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John M. Barkley graduated from Baylor College Of Medicine
Dr. Barkley graduated from Baylor College Of Medicine in 1999.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Dr. John M. Barkley accepts plans from 17 insurance carriers
Dr. Barkley is in network with 17 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Excellus BlueCross BlueShield
- Alliant Health Plans
- HCSC
- Aspirus Health Plan
- +9 more carriersWith a free account
Plan types Dr. Barkley accepts, by number of carriers
- HMO9
- PPO9
- POS6
- Medicare4
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. John M. Barkley'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)Clinician Public Reporting: Overall MIPS Performance (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. John M. Barkley
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 M. Barkley's NPI number?
Dr. John M. Barkley's NPI number is 1235129867. It was assigned on October 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John M. Barkley?
Dr. John M. Barkley is a diagnostic radiologist in San Marcos, Texas. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. John M. Barkley practice?
Dr. Barkley practices at 1301 Wonder World Drive, San Marcos, TX 78666. Dr. Barkley's primary practice is CHRISTUS Santa Rosa Hospital - San Marcos in San Marcos, Texas, part of CHRISTUS Health. Dmand AI also links Dr. Barkley to 3 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. John M. Barkley's office phone number?
The practice phone on file for Dr. Barkley is (512) 753-3511.
What is Dr. John M. Barkley's medical license number?
Dr. Barkley holds Texas license L1264, one of the licenses on file in 3 states.
Which states has Dr. John M. Barkley been licensed in?
Dmand AI has state licenses on file for Dr. Barkley in Texas (2001 to 2026), Hawaii (2010 to 2012) and Massachusetts (2004 to 2007).
Which hospitals is Dr. John M. Barkley affiliated with?
Dr. Barkley practices at CHRISTUS Santa Rosa Hospital - San Marcos in San Marcos, Texas. Dr. Barkley is also affiliated with St. David's Medical Center. Dmand AI links Dr. Barkley to 3 more hospitals.
What medical group is Dr. John M. Barkley part of?
Dr. Barkley is linked to Singleton Associates PA. Dmand AI links Dr. Barkley to 1 more medical group.
Does Dr. John M. Barkley accept Medicare?
Yes. CMS data shows Dr. Barkley billed Medicare for 6,923 services in 2024, and Dr. Barkley accepts Medicare assignment.
What is Dr. John M. Barkley's MIPS score?
Dr. Barkley's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. John M. Barkley see?
CMS counts 2,612 Medicare patients who saw Dr. Barkley in 2024, with an average age of 76.
Is Dr. John M. Barkley board certified?
Yes. Dr. Barkley is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. John M. Barkley bill to Medicare?
In 2024, Dr. Barkley's most billed Medicare services were medicare temporary code (Q9967), medical supplies or transport (A9585) and diagnostic imaging (71045).
Where did Dr. John M. Barkley go to medical school?
Dr. Barkley graduated from Baylor College Of Medicine in 1999.
Has Dr. John M. Barkley received payments from drug or device companies?
CMS Open Payments shows $612 in general payments to Dr. Barkley from 8 companies from 2021 to 2024. The largest total came from Inari Medical, Inc.
How long has Dr. John M. Barkley been practicing?
Dr. Barkley graduated from medical school in 1999, 27 years ago.
Does Dr. John M. Barkley do research?
Dmand AI links 2 publications to Dr. Barkley.
Who does Dr. John M. Barkley publish with?
Dr. Barkley's most frequent co-authors are Nabeel Farhataziz, MD (1 shared paper).
What insurance does Dr. John M. Barkley accept?
Dr. Barkley is in network with 17 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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