Dr. John Matthew Martin IV, MD
- Medicare services, 2024
- 5,270
- Medicare patients, 2024
- 807
- Part D claims, 2024
- 1,318
- Publications
- 13
- MIPS score, 2024
- 86
- Practice address
- 1000 Greenley Road, Sonora, CA 95370
- Practice phone
- Call (209) 536-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. John Matthew Martin IV is a dermatologist in Sonora, California
Dr. Martin practices at Adventist Health Sonora in Sonora, California, part of Adventist Health.
Dr. Martin's NPI, 1689808131, was assigned on May 13, 2009. Dr. Martin graduated from Joe R. & Teresa Lozano Long School of Medicine in 2009. Dr. Martin holds Texas license P6217.
- NPI
- 1689808131NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890085930
- NPI enumeration date
- May 13, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 536-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Matthew Martin IV practices at Adventist Health Sonora in Sonora, California
Dr. Martin's primary practice is Adventist Health Sonora, at 1000 Greenley Road, Sonora, CA 95370 in Tuolumne County. The practice phone is (209) 536-5000.
- Adventist Health Sonora1000 Greenley Road, Sonora, CA 95370 · Tuolumne CountyPhone(209) 536-5000
Source: Dmand AI Affiliation Data
Dr. John Matthew Martin IV is affiliated with 2 sites of care and 1 medical group
Dr. Martin's primary practice is Adventist Health Sonora in Sonora, California, part of Adventist Health. The medical group on file is DeSilva Dermatology. Dmand AI also links Dr. Martin to 1 more group practice or clinic, 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 Matthew Martin IV's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Martin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Sonora | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Matthew Martin IV is one of 1,910 dermatologists in California
Dermatology is Dr. Martin's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Martin is board certified in dermatology by the American Board of Dermatology. Dr. Martin is licensed in Texas.
Specialties and state licenses
- Dermatology, TexasPrimary
Clinical focus
Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, contact dermatitis, corns and calluses, facial skin infection, hives and itchy rashes among the conditions Dr. Martin treats.
Dermatologists near Dr. Martin
Counts of dermatologists 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 Matthew Martin IV billed Medicare for 5,270 services in 2024
CMS data shows 5,270 Medicare services from Dr. Martin across 16 procedure codes in 2024, for 807 Medicare patients. Medicare paid $188,988 for them. Every service was in an office.
Dr. Martin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 2,3042024: 4,04175%
- Office and hospital visits
- 2023: 7442024: 1,22965%
- Drugs given in the office
- 2023: 5,2002024: 0100%
- Tests and treatments
- 2023: 282024: 0100%
Dr. Martin compared with the California median for dermatologists, 2024
- Dr. Martin
- California median
- Medicare services
- 5,270vs 1,7503.0 times
- Medicare patients
- 807vs 3772.1 times
- Part D claims
- 1,167vs 3673.2 times
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
Dr. Martin'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. Martin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Martin and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Matthew Martin IV treated 807 Medicare patients in 2024, average age 74
CMS counts 807 Medicare patients who saw Dr. Martin in 2024. The largest group is 65 to 74, with 435 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Martin's median patient age at 67, with 43% women.
Dr. Martin's Medicare patients by age, 2024
Dr. Martin's Medicare patients by sex, 2024
- Women33441%
- Men47359%
Chronic conditions among Dr. Martin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis44%
- Ischemic heart disease30%
- Chronic kidney disease23%
- Diabetes23%
- Mood disorders16%
- Anxiety15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Martin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women43%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Matthew Martin IV wrote 1,318 Medicare Part D claims in 2024
In 2024, Dr. Martin wrote 1,318 Medicare Part D claims for 549 patients. 96% of them were for generic drugs. CMS names the drug for 1,167 of them, across 21 drugs with 11 or more claims each, at $102,588 in total drug cost. In 2023, CMS named 817 claims across 16 drugs.
Dr. Martin's Part D claims by kind of drug, 2024
- Generic1,260 claims96%
- Brand-name58 claims4%
Dr. Martin's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Martin's Part D claims, 2024
- Antibiotics4%47 of 1,318 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 8172024: 1,16743%
Drugs named by CMS: 21 in 2024, 16 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. John Matthew Martin IV scored 86 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Martin for performance year 2024, reported individually. Dr. Martin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 2,311 procedures of removal of skin lesions by Dr. Martin, more than 98% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Martin's MIPS scores, performance year 2024
- 86of 100Final score
- 72.7of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Martin ranks in Medicare procedure volume
- Removal of skin lesions
- 98th percentile2,311 procedures
- Skin biopsy
- 96th percentile541 procedures
- Melanoma (skin cancer) excision
- 89th percentile63 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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. John Matthew Martin IV has 13 publications on record
Dmand AI links 13 papers to Dr. Martin, published from 2009 to 2019. 2010 was the busiest year, with 2. The most frequent topics are Plant Proteins, Triticum and Gene Expression Regulation, Plant. Dr. Martin has published most often in Arch Dermatol. Dr. Martin's most frequent co-authors are John Caleb Browning, MD, Jaime Martin, MD and James E. Martin, MD.
Dr. Martin's papers by year, 2009 to 2019
Topics Dr. Martin writes about most
- Plant Proteins
- Triticum
- Gene Expression Regulation, Plant
- Dapsone
- Drug Therapy, Combination
- Genotype
- Plants, Genetically Modified
- Seeds
Dr. Martin's most frequent co-authors
- John Caleb Browning, MD1 shared paper
- Jaime Martin, MD1 shared paper
- James E. Martin, MD1 shared paper
Recent publications by Dr. Martin
See who Dr. Martin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Martin works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Matthew Martin IV received $34,451 in industry payments from 2016 to 2025
CMS Open Payments shows 1,485 general payments to Dr. Martin from 44 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 83% of the total. UCB, Inc. paid the most, $6,024.
General payments to Dr. Martin by program year, 2016 to 2025
General payments to Dr. Martin by kind, 2016 to 2025
- Food and beverage$28,59783%
- Consulting fees$4,43013%
- Education$7142%
- Honoraria$7002%
- Travel and lodging$100%
Companies that paid Dr. Martin 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. John Matthew Martin IV graduated from Joe R. & Teresa Lozano Long School of Medicine
Dr. Martin graduated from Joe R. & Teresa Lozano Long School of Medicine in 2009.
- Medical school
- Board certified in dermatology
Source: Dmand AI Professional Profile Data
Dr. John Matthew Martin IV accepts plans from 22 insurance carriers
Dr. Martin is in network with 22 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 14. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Excellus BlueCross BlueShield
- Cigna
- HCSC
- Humana
- +14 more carriersWith a free account
Plan types Dr. Martin accepts, by number of carriers
- PPO14
- HMO12
- Medicare11
- POS6
- EPO5
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. John Matthew Martin IV'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)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)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. John Matthew Martin IV
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 Matthew Martin IV's NPI number?
Dr. John Matthew Martin IV's NPI number is 1689808131. It was assigned on May 13, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. John Matthew Martin IV?
Dr. John Matthew Martin IV is a dermatologist in Sonora, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. John Matthew Martin IV practice?
Dr. Martin practices at 1000 Greenley Road, Sonora, CA 95370. Dr. Martin's primary practice is Adventist Health Sonora in Sonora, California, part of Adventist Health. Dmand AI also links Dr. Martin to 1 group practice or clinic.
What is Dr. John Matthew Martin IV's office phone number?
The practice phone on file for Dr. Martin is (209) 536-5000.
What is Dr. John Matthew Martin IV's medical license number?
Dr. Martin holds Texas license P6217.
Which hospitals is Dr. John Matthew Martin IV affiliated with?
Dr. Martin practices at Adventist Health Sonora in Sonora, California.
What medical group is Dr. John Matthew Martin IV part of?
Dr. Martin is linked to DeSilva Dermatology.
Does Dr. John Matthew Martin IV accept Medicare?
Yes. CMS data shows Dr. Martin billed Medicare for 5,270 services in 2024, and Dr. Martin accepts Medicare assignment.
What is Dr. John Matthew Martin IV's MIPS score?
Dr. Martin's MIPS final score for performance year 2024 is 86 out of 100, reported individually.
How many Medicare patients does Dr. John Matthew Martin IV see?
CMS counts 807 Medicare patients who saw Dr. Martin in 2024, with an average age of 74.
Show 9 more questionsShow fewer questions
Is Dr. John Matthew Martin IV board certified?
Yes. Dr. Martin is board certified in dermatology by the American Board of Dermatology.
What services does Dr. John Matthew Martin IV bill to Medicare?
In 2024, Dr. Martin's most billed Medicare services were surgery: skin and soft tissue (17003), surgery: skin and soft tissue (17000) and office visit, established patient (99213).
Where did Dr. John Matthew Martin IV go to medical school?
Dr. Martin graduated from Joe R. & Teresa Lozano Long School of Medicine in 2009.
What drugs does Dr. John Matthew Martin IV prescribe most?
In 2024 Medicare Part D data, Dr. Martin's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Hydrocortisone.
Has Dr. John Matthew Martin IV received payments from drug or device companies?
CMS Open Payments shows $34,451 in general payments to Dr. Martin from 44 companies from 2016 to 2025. The largest total came from UCB, Inc.
How long has Dr. John Matthew Martin IV been practicing?
Dr. Martin graduated from medical school in 2009, 17 years ago.
Does Dr. John Matthew Martin IV do research?
Dmand AI links 13 publications to Dr. Martin, published from 2009 to 2019.
Who does Dr. John Matthew Martin IV publish with?
Dr. Martin's most frequent co-authors are John Caleb Browning, MD (1 shared paper), Jaime Martin, MD (1 shared paper) and James E. Martin, MD (1 shared paper).
What insurance does Dr. John Matthew Martin IV accept?
Dr. Martin is in network with 22 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 14. Check the plan with the practice before a visit.
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