Dr. John Matthew Martin IV, MD

  • Sonora, CA
  • Dermatologist
NPI1689808131PAC ID5890085930
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Adventist Health Sonora

Hospital · Sonora, California

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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 and contact details
Medicare PAC ID
5890085930
NPI enumeration date
May 13, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(209) 536-5000
Professional email
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Personal email
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Mobile number
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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.

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.

See all 3 affiliations for Dr. Martin

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.

EHR by site
SiteEHR vendor and product
Adventist Health SonoraAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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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, TexasPrimaryLicense P6217 · 2013 to 2027 · taxonomy 207N00000X

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.

Medicare services, 20245,270
Medicare patients807
Paid by Medicare$188,988
Procedure codes16

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.

See all procedures by Dr. Martin

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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.

Medicare patients, 2024807
Average age74
Average risk score0.94

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

  1. High cholesterol75%
  2. High blood pressure73%
  3. Arthritis44%
  4. Ischemic heart disease30%
  5. Chronic kidney disease23%
  6. Diabetes23%
  7. Mood disorders16%
  8. 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.

Part D claims, 20241,318
Drugs named by CMS21
Total drug cost$102,588
Part D patients549

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.

See all prescribing by Dr. Martin

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.

Papers13
Years published2009 to 2019

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

Recent publications by Dr. Martin

See all 13 publications and co-authors

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.

How network discovery works

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

$34.5Kin total
  • 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.

See all payments to Dr. Martin

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.

  1. Medical schoolJoe R. & Teresa Lozano Long School of Medicine
  2. Board certified in dermatologyAmerican Board of 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.

Plan types Dr. Martin accepts, by number of carriers

  1. PPO14
  2. HMO12
  3. Medicare11
  4. POS6
  5. EPO5
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. John Matthew Martin IV's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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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