Dr. Grietje Van Dyk, MD
- Medicare services, 2021
- 103
- Part D claims, 2018
- 14
- Industry payments
- $2,379
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 171-A Ryan Road, Pasadena, MD 21122
- Practice phone
- Call (410) 360-6600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tranquility Woods Addiction Treatment Center
Residential Addiction Treatment · Pasadena, Maryland
Find Dr. Van Dyk'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. Grietje Van Dyk is an orthopedic surgeon in Pasadena, Maryland
Dr. Van Dyk practices at Tranquility Woods Addiction Treatment Center in Pasadena, Maryland.
Dr. Van Dyk's NPI, 1003126830, was assigned on October 14, 2010. Dr. Van Dyk graduated from David Geffen School of Medicine at UCLA in 1986. Dr. Van Dyk holds California license G61231.
- NPI
- 1003126830NPI Registry (opens in a new tab)
- NPI enumeration date
- October 14, 2010
- NPI status
- Active
- Practice phone
- (410) 360-6600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Grietje Van Dyk practices at Tranquility Woods Addiction Treatment Center in Pasadena, Maryland
Dr. Van Dyk's primary practice is Tranquility Woods Addiction Treatment Center, at 171-A Ryan Road, Pasadena, MD 21122. The practice phone is (410) 360-6600.
- Tranquility Woods Addiction Treatment Center171-A Ryan Road, Pasadena, MD 21122Phone(410) 360-6600
Source: Dmand AI Affiliation Data
Dr. Grietje Van Dyk is affiliated with 2 sites of care and 1 medical group
Dr. Van Dyk's primary practice is Tranquility Woods Addiction Treatment Center in Pasadena, Maryland. Dmand AI also links Dr. Van Dyk to 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. Grietje 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 |
|---|---|
| Tranquility Woods Addiction Treatment Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Grietje Van Dyk is one of 404 orthopedic surgeons in Maryland
Orthopaedic surgery is Dr. Van Dyk's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dmand AI has Dr. Van Dyk's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Michigan license
Orthopedic surgeons near Dr. Van Dyk
Counts of orthopedic surgeons 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. Grietje Van Dyk billed Medicare for 103 services in 2021
CMS data shows 103 Medicare services from Dr. Van Dyk across 4 procedure codes in 2021, all of them office visits. Medicare paid $9,500 for them. Every service was in an office.
Dr. Van Dyk's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 762021: 10336%
- Drugs given in the office
- 2020: 202021: 0100%
Dr. Van Dyk compared with the Maryland median for orthopedic surgeons, 2021
- Dr. Van Dyk
- Maryland median
- Medicare services
- 103vs 1,34392% below
- Part D claims
- 14vs 9084% below
Medians across 368 orthopedic surgeons in Maryland with Dmand AI profiles that report each measure.
Dr. Van Dyk's most billed Medicare procedure codes, 2021
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 orthopedic surgeons in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Grietje Van Dyk's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Van Dyk's median patient age at 59, with 75% women.
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 59
Patient panel by sex, all payers
- Women75%
- Men13%
Source: Dmand AI Patient Panel Data
Dr. Grietje Van Dyk wrote 14 Medicare Part D claims in 2018
In 2018, Dr. Van Dyk wrote 14 Medicare Part D claims. They cover 1 drug, with $45,070 in total drug cost. In 2017, CMS named 25 claims across 2 drugs.
Dr. Van Dyk's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 252018: 1444%
Drugs named by CMS: 1 in 2018, 2 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Grietje Van Dyk received $2,379 in industry payments from 2016 to 2021
CMS Open Payments shows 34 general payments to Dr. Van Dyk from 13 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 56% of the total. Stryker Corporation paid the most, $1,917.
General payments to Dr. Van Dyk by program year, 2016 to 2021
General payments to Dr. Van Dyk by kind, 2016 to 2021
- Food and beverage$1,33956%
- Travel and lodging$57724%
- Consulting fees$46420%
Companies that paid Dr. Van Dyk the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Grietje Van Dyk graduated from David Geffen School of Medicine at UCLA
Dr. Van Dyk graduated from David Geffen School of Medicine at UCLA in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Grietje Van Dyk accepts plans from 3 insurance carriers
Dr. Van Dyk is in network with 3 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Molina. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Molina
Plan types Dr. Van Dyk accepts, by number of carriers
- HMO2
- Medicare2
- POS2
- PPO2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Grietje 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 | 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| 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. Grietje 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. Grietje Van Dyk's NPI number?
Dr. Grietje Van Dyk's NPI number is 1003126830. It was assigned on October 14, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Grietje Van Dyk?
Dr. Grietje Van Dyk is an orthopedic surgeon in Pasadena, Maryland. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Grietje Van Dyk practice?
Dr. Van Dyk practices at 171-A Ryan Road, Pasadena, MD 21122. Dr. Van Dyk's primary practice is Tranquility Woods Addiction Treatment Center in Pasadena, Maryland. Dmand AI also links Dr. Van Dyk to 1 group practice or clinic and 1 medical group.
What is Dr. Grietje Van Dyk's office phone number?
The practice phone on file for Dr. Van Dyk is (410) 360-6600.
What is Dr. Grietje Van Dyk's medical license number?
Dr. Van Dyk holds California license G61231, one of the licenses on file in 2 states.
Which states has Dr. Grietje Van Dyk been licensed in?
Dmand AI has state licenses on file for Dr. Van Dyk in California (1987 to 2027) and Michigan (1991 to 1995).
Does Dr. Grietje Van Dyk accept Medicare?
Yes. CMS data shows Dr. Van Dyk billed Medicare for 103 services in 2021.
What services does Dr. Grietje Van Dyk bill to Medicare?
In 2021, Dr. Van Dyk's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and office visit, new patient (99203).
Where did Dr. Grietje Van Dyk go to medical school?
Dr. Van Dyk graduated from David Geffen School of Medicine at UCLA in 1986.
What drugs does Dr. Grietje Van Dyk prescribe most?
In 2018 Medicare Part D data, Dr. Van Dyk's most prescribed drugs by claims were Forteo.
Show 3 more questionsShow fewer questions
Has Dr. Grietje Van Dyk received payments from drug or device companies?
CMS Open Payments shows $2,379 in general payments to Dr. Van Dyk from 13 companies from 2016 to 2021. The largest total came from Stryker Corporation.
How long has Dr. Grietje Van Dyk been practicing?
Dr. Van Dyk graduated from medical school in 1986, 40 years ago.
What insurance does Dr. Grietje Van Dyk accept?
Dr. Van Dyk is in network with 3 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Molina. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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