Dr. Henry John Leonard Van Dyk, MD
- Medicare services, 2024
- 206
- Medicare patients, 2024
- 80
- Part D claims, 2024
- 3,172
- MIPS score, 2024
- 78
- Hospital affiliations
- 2
- Practice address
- PO Box 600, Tuba City, AZ 86045
- Practice phone
- Call (928) 283-2501
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Van Dyk's professional email, personal email and mobile number
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Dr. Henry John Leonard Van Dyk is an internist in Tuba City, Arizona
Dr. Van Dyk practices at Tuba City Regional Health Care Corporation in Tuba City, Arizona, part of Tuba City Regional Health Care.
Dr. Van Dyk's NPI, 1093751125, was assigned on June 20, 2006. Dr. Van Dyk graduated from Louisiana State University School of Medicine in New Orleans in 1989. Dr. Van Dyk holds Washington license 28767.
- NPI
- 1093751125NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850492174
- NPI enumeration date
- June 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (928) 283-2501
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Henry John Leonard Van Dyk practices at 2 locations in Tuba City, Arizona
Dr. Van Dyk's primary practice is Tuba City Regional Health Care Corporation, at PO Box 600, Tuba City, AZ 86045 in Coconino County. The practice phone is (928) 283-2501. Dr. Van Dyk also practices at Tuba City Regional Health Care Corporation, 167 N Main St, Tuba City, AZ 86045.
- Tuba City Regional Health Care CorporationPrimaryPO Box 600, Tuba City, AZ 86045 · Coconino CountyPhone(928) 283-2501
- Tuba City Regional Health Care Corporation167 N Main St, Tuba City, AZ 86045 · Coconino CountyPhone(928) 283-2501
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Henry John Leonard Van Dyk is affiliated with 2 sites of care and 2 medical groups
Dr. Van Dyk's primary practice is Tuba City Regional Health Care Corporation in Tuba City, Arizona, part of Tuba City Regional Health Care. Dr. Van Dyk is also affiliated with Flagstaff Medical Center. The medical group on file is Tuba City Regional Health. Dmand AI also links Dr. Van Dyk to 1 more medical group, named with a free account. Dr. Van Dyk's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Henry John Leonard Van Dyk's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Van Dyk practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tuba City Regional Health Care Corporation | Available with a free account |
| +1 more site and 1 medical group | 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 Tuba City Regional Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Henry John Leonard Van Dyk is one of 2,420 internists in Arizona
Internal medicine is Dr. Van Dyk's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Van Dyk is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Dr. Van Dyk
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. Henry John Leonard Van Dyk billed Medicare for 206 services in 2024
CMS data shows 206 Medicare services from Dr. Van Dyk across 2 procedure codes in 2024, all of them office visits, for 80 Medicare patients. Medicare paid $12,799 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Van Dyk's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4152024: 20650%
Dr. Van Dyk compared with the Arizona median for internists, 2024
- Dr. Van Dyk
- Arizona median
- Medicare services
- 206vs 47657% below
- Medicare patients
- 80vs 20561% below
- Part D claims
- 2,910vs 26011.2 times
Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.
Dr. Van Dyk'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. Van Dyk and other internists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Henry John Leonard Van Dyk treated 80 Medicare patients in 2024, average age 73
CMS counts 80 Medicare patients who saw Dr. Van Dyk in 2024. The largest group is 65 to 74, with 41 patients. 70% of them have high blood pressure, and 66% have high cholesterol. 35% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Van Dyk's median patient age at 72, with 48% women.
Dr. Van Dyk's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Van Dyk's Medicare patients by sex, 2024
- Women3949%
- Men4151%
Chronic conditions among Dr. Van Dyk's Medicare patients, 2024
- High blood pressure70%
- High cholesterol66%
- Diabetes54%
- Arthritis51%
- Ischemic heart disease21%
- Osteoporosis16%
- Cancer15%
- Chronic kidney disease15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Van Dyk's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women48%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Henry John Leonard Van Dyk wrote 3,172 Medicare Part D claims in 2024
In 2024, Dr. Van Dyk wrote 3,172 Medicare Part D claims for 136 patients. 72% of them were for generic drugs. CMS names the drug for 2,910 of them, across 56 drugs with 11 or more claims each, at $358,232 in total drug cost. In 2023, CMS named 4,684 claims across 74 drugs.
Dr. Van Dyk's Part D claims by kind of drug, 2024
- Generic2,298 claims72%
- Brand-name701 claims22%
- Other173 claims5%
Dr. Van Dyk'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. Van Dyk's Part D claims, 2024
- Antibiotics1%34 of 3,172 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: 4,6842024: 2,91038%
Drugs named by CMS: 56 in 2024, 74 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. Henry John Leonard Van Dyk scored 78 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 78 out of 100 for Dr. Van Dyk for performance year 2024, reported as part of a group. Dr. Van Dyk accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Van Dyk's MIPS scores, performance year 2024
- 78of 100Final score
- 47.5of 100Quality
- 69of 100Promoting Interoperability
- 40of 100Improvement Activities
- 87of 100Cost
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. Henry John Leonard Van Dyk received $489 in industry payments from 2016 to 2023
CMS Open Payments shows 29 general payments to Dr. Van Dyk from 4 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $445.
General payments to Dr. Van Dyk by program year, 2016 to 2023
Companies that paid Dr. Van Dyk the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Henry John Leonard Van Dyk graduated from Louisiana State University School of Medicine in New Orleans
Dr. Van Dyk graduated from Louisiana State University School of Medicine in New Orleans in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Henry John Leonard Van Dyk'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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) |
| 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. Henry John Leonard Van Dyk
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. Henry John Leonard Van Dyk's NPI number?
Dr. Henry John Leonard Van Dyk's NPI number is 1093751125. It was assigned on June 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Henry John Leonard Van Dyk?
Dr. Henry John Leonard Van Dyk is an internist in Tuba City, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Henry John Leonard Van Dyk practice?
Dr. Van Dyk practices at PO Box 600, Tuba City, AZ 86045. Dr. Van Dyk also practices at 167 N Main St, Tuba City, AZ 86045. Dr. Van Dyk's primary practice is Tuba City Regional Health Care Corporation in Tuba City, Arizona, part of Tuba City Regional Health Care. Dmand AI also links Dr. Van Dyk to 1 medical group.
What is Dr. Henry John Leonard Van Dyk's office phone number?
The practice phone on file for Dr. Van Dyk is (928) 283-2501.
What is Dr. Henry John Leonard Van Dyk's medical license number?
Dr. Van Dyk holds Washington license 28767.
Which hospitals is Dr. Henry John Leonard Van Dyk affiliated with?
Dr. Van Dyk practices at Tuba City Regional Health Care Corporation in Tuba City, Arizona. Dr. Van Dyk is also affiliated with Flagstaff Medical Center.
What medical group is Dr. Henry John Leonard Van Dyk part of?
Dr. Van Dyk is linked to Tuba City Regional Health. Dmand AI links Dr. Van Dyk to 1 more medical group.
Does Dr. Henry John Leonard Van Dyk accept Medicare?
Yes. CMS data shows Dr. Van Dyk billed Medicare for 206 services in 2024, and Dr. Van Dyk accepts Medicare assignment.
What is Dr. Henry John Leonard Van Dyk's MIPS score?
Dr. Van Dyk's MIPS final score for performance year 2024 is 78 out of 100, reported as part of a group.
How many Medicare patients does Dr. Henry John Leonard Van Dyk see?
CMS counts 80 Medicare patients who saw Dr. Van Dyk in 2024, with an average age of 73.
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What services does Dr. Henry John Leonard Van Dyk bill to Medicare?
In 2024, Dr. Van Dyk's most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Henry John Leonard Van Dyk go to medical school?
Dr. Van Dyk graduated from Louisiana State University School of Medicine in New Orleans in 1989.
What drugs does Dr. Henry John Leonard Van Dyk prescribe most?
In 2024 Medicare Part D data, Dr. Van Dyk's most prescribed drugs by claims were Rosuvastatin Calcium, Lisinopril and Amlodipine Besylate.
Has Dr. Henry John Leonard Van Dyk received payments from drug or device companies?
CMS Open Payments shows $489 in general payments to Dr. Van Dyk from 4 companies from 2016 to 2023. The largest total came from Boston Scientific Corporation.
How long has Dr. Henry John Leonard Van Dyk been practicing?
Dr. Van Dyk graduated from medical school in 1989, 37 years ago.
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