Dr. Mark Gerard Webb, MD
- Medicare services, 2024
- 1,767
- Medicare patients, 2024
- 409
- Part D claims, 2024
- 5,655
- Hospital affiliations
- 2
- Industry payments
- $9,203
- Practice address
- 10900 N Scottsdale Rd Suite 206 Suite 206, Scottsdale, AZ 85254-5228
- Practice phone
- Call (480) 991-5088
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Valley Internal Medicine And Pediatrics
Primary care practice · Scottsdale, Arizona
Find Dr. Webb'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. Mark Gerard Webb is an internist in Scottsdale, Arizona
Dr. Webb practices at Valley Internal Medicine And Pediatrics in Scottsdale, Arizona.
Dr. Webb's NPI, 1255396867, was assigned on April 18, 2006. Dr. Webb graduated from University of Arizona College of Medicine in 1987. Dr. Webb holds Arizona license 19868.
- NPI
- 1255396867NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658567565
- NPI enumeration date
- April 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (480) 991-5088
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Gerard Webb practices at Valley Internal Medicine and Pediatrics in Scottsdale, Arizona
Dr. Webb's primary practice is Valley Internal Medicine and Pediatrics, at 10900 N Scottsdale Rd Suite 206 Suite 206, Scottsdale, AZ 85254-5228. The practice phone is (480) 991-5088.
- Valley Internal Medicine and Pediatrics10900 N Scottsdale Rd Suite 206 Suite 206, Scottsdale, AZ 85254-5228Phone(480) 991-5088
Source: Dmand AI Affiliation Data
Dr. Mark Gerard Webb is affiliated with 3 sites of care and 1 medical group
Dr. Webb's primary practice is Valley Internal Medicine And Pediatrics in Scottsdale, Arizona. Dr. Webb is also affiliated with HonorHealth Scottsdale Shea Medical Center. The medical group on file is Valley Internal Medicine and Pediatrics. Dmand AI also links Dr. Webb to 1 more hospital, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark Gerard Webb's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Webb practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valley Internal Medicine And Pediatrics | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Gerard Webb is one of 2,420 internists in Arizona
Internal medicine is Dr. Webb's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Webb is licensed in Arizona.
Specialties and state licenses
- Internal medicine, ArizonaPrimary
Internists near Dr. Webb
Counts of internists 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. Mark Gerard Webb billed Medicare for 1,767 services in 2024
CMS data shows 1,767 Medicare services from Dr. Webb across 16 procedure codes in 2024, for 409 Medicare patients. Medicare paid $94,880 for them. Every service was in an office.
Dr. Webb's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8202024: 90410%
- Other services
- 2023: 3292024: 3115%
- Surgery
- 2023: 3462024: 31010%
- Lab and pathology
- 2023: 1522024: 17817%
- Tests and treatments
- 2023: 1242024: 6448%
Dr. Webb compared with the Arizona median for internists, 2024
- Dr. Webb
- Arizona median
- Medicare services
- 1,767vs 4763.7 times
- Medicare patients
- 409vs 205100% above
- Part D claims
- 4,997vs 26019.2 times
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Webb'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. Webb?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Webb and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Gerard Webb treated 409 Medicare patients in 2024, average age 76
CMS counts 409 Medicare patients who saw Dr. Webb in 2024. The largest group is 75 to 84, with 193 patients. 66% of them have high cholesterol, and 59% have high blood pressure. Their average risk score is 0.85, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Webb's median patient age at 70, with 48% women.
Dr. Webb's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Webb's Medicare patients by sex, 2024
- Women19848%
- Men21152%
Chronic conditions among Dr. Webb's Medicare patients, 2024
- High cholesterol66%
- High blood pressure59%
- Arthritis41%
- Ischemic heart disease23%
- Anxiety17%
- Atrial fibrillation15%
- Cancer15%
- Diabetes15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Webb's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Gerard Webb wrote 5,655 Medicare Part D claims in 2024
In 2024, Dr. Webb wrote 5,655 Medicare Part D claims for 536 patients. 89% of them were for generic drugs. CMS names the drug for 4,997 of them, across 117 drugs with 11 or more claims each, at $286,483 in total drug cost. In 2023, CMS named 5,025 claims across 116 drugs.
Dr. Webb's Part D claims by kind of drug, 2024
- Generic5,019 claims89%
- Brand-name615 claims11%
- Other21 claims0%
Dr. Webb'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. Webb's Part D claims, 2024
- Opioids2%98 of 5,655 claims
- Antibiotics4%250 of 5,655 claims
- Antipsychotics, patients 65 and over0%28 of 5,655 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: 5,0252024: 4,9971%
Drugs named by CMS: 117 in 2024, 116 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
How Dr. Mark Gerard Webb takes part in Medicare
Dr. Webb accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark Gerard Webb received $9,203 in industry payments from 2016 to 2025
CMS Open Payments shows 514 general payments to Dr. Webb from 54 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,134.
General payments to Dr. Webb by program year, 2016 to 2025
General payments to Dr. Webb by kind, 2016 to 2025
- Food and beverage$9,163100%
- Education$270%
- Speaker and faculty fees$120%
Companies that paid Dr. Webb 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. Mark Gerard Webb graduated from University of Arizona College of Medicine
Dr. Webb graduated from University of Arizona College of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Gerard Webb'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 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)Doctors and Clinicians Utilization Data (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. Mark Gerard Webb
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. Mark Gerard Webb's NPI number?
Dr. Mark Gerard Webb's NPI number is 1255396867. It was assigned on April 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Gerard Webb?
Dr. Mark Gerard Webb is an internist in Scottsdale, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark Gerard Webb practice?
Dr. Webb practices at 10900 N Scottsdale Rd Suite 206 Suite 206, Scottsdale, AZ 85254-5228. Dr. Webb's primary practice is Valley Internal Medicine And Pediatrics in Scottsdale, Arizona. Dmand AI also links Dr. Webb to 1 hospital.
What is Dr. Mark Gerard Webb's office phone number?
The practice phone on file for Dr. Webb is (480) 991-5088.
What is Dr. Mark Gerard Webb's medical license number?
Dr. Webb holds Arizona license 19868.
Which hospitals is Dr. Mark Gerard Webb affiliated with?
Dr. Webb is affiliated with HonorHealth Scottsdale Shea Medical Center. Dmand AI links Dr. Webb to 1 more hospital.
What medical group is Dr. Mark Gerard Webb part of?
Dr. Webb is linked to Valley Internal Medicine and Pediatrics.
Does Dr. Mark Gerard Webb accept Medicare?
Yes. CMS data shows Dr. Webb billed Medicare for 1,767 services in 2024, and Dr. Webb accepts Medicare assignment.
How many Medicare patients does Dr. Mark Gerard Webb see?
CMS counts 409 Medicare patients who saw Dr. Webb in 2024, with an average age of 76.
What services does Dr. Mark Gerard Webb bill to Medicare?
In 2024, Dr. Webb's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and surgery: heart and blood vessels (36415).
Show 4 more questionsShow fewer questions
Where did Dr. Mark Gerard Webb go to medical school?
Dr. Webb graduated from University of Arizona College of Medicine in 1987.
What drugs does Dr. Mark Gerard Webb prescribe most?
In 2024 Medicare Part D data, Dr. Webb's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Mark Gerard Webb received payments from drug or device companies?
CMS Open Payments shows $9,203 in general payments to Dr. Webb from 54 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Mark Gerard Webb been practicing?
Dr. Webb graduated from medical school in 1987, 39 years ago.
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