Dr. Timothy David Trojan, MD
- Medicare services, 2024
- 9,035
- Medicare patients, 2024
- 383
- Part D claims, 2024
- 1,889
- MIPS score, 2024
- 75
- Hospital affiliations
- 3
- Practice address
- 3201 N Van Buren St, Enid, OK 73703
- Practice phone
- Call (580) 366-0844
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Allergy Partners of Oklahoma
Enid, Oklahoma
Find Dr. Trojan'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. Timothy David Trojan is an allergist and immunologist in Enid, Oklahoma
Dr. Trojan practices at Allergy Partners of Oklahoma in Enid, Oklahoma.
Dr. Trojan's NPI, 1518125053, was assigned on May 31, 2008. Dr. Trojan graduated from University of Texas Southwestern Medical School at Dallas in 2008. Dr. Trojan holds Oklahoma license 29671.
- NPI
- 1518125053NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961674999
- NPI enumeration date
- May 31, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (580) 366-0844
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy David Trojan practices at Allergy Partners of Oklahoma in Enid, Oklahoma
Dr. Trojan's primary practice is Allergy Partners of Oklahoma, at 3201 N Van Buren St, Enid, OK 73703 in Garfield County. The practice phone is (580) 366-0844.
- Allergy Partners of Oklahoma3201 N Van Buren St, Enid, OK 73703 · Garfield CountyPhone(580) 366-0844
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Timothy David Trojan is affiliated with 7 sites of care and 3 medical groups
Dr. Trojan's primary practice is Allergy Partners of Oklahoma in Enid, Oklahoma. Dr. Trojan is also affiliated with St. Mary's Regional Medical Center. The medical group on file is Allergy Partners of Crestview Hills. Dmand AI also links Dr. Trojan to 2 more hospitals, 3 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Timothy David Trojan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Trojan practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Allergy Partners of Oklahoma | Available with a free account |
| +6 more sites and 2 medical groups | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Timothy David Trojan is one of 16 allergists and immunologists in Oklahoma
Allergy and immunology is Dr. Trojan's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Trojan is licensed in Oklahoma.
Specialties and state licenses
- Allergy and immunology, OklahomaPrimary
Allergists and immunologists near Dr. Trojan
Counts of allergists and immunologists 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. Timothy David Trojan billed Medicare for 9,035 services in 2024
CMS data shows 9,035 Medicare services from Dr. Trojan across 14 procedure codes in 2024, for 383 Medicare patients. Medicare paid $87,737 for them. Every service was in an office.
Dr. Trojan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 7,8932024: 8,4938%
- Office and hospital visits
- 2023: 5152024: 5283%
- Drugs given in the office
- 2023: 02024: 14
Dr. Trojan compared with the Oklahoma median for allergists and immunologists, 2024
- Dr. Trojan
- Oklahoma median
- Medicare services
- 9,035vs 7,07828% above
- Medicare patients
- 383vs 23166% above
- Part D claims
- 1,748vs 96581% above
Medians across 15 allergists and immunologists in Oklahoma with Dmand AI profiles that report each measure.
Dr. Trojan'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. Trojan?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Trojan and other allergists and immunologists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy David Trojan treated 383 Medicare patients in 2024, average age 71
CMS counts 383 Medicare patients who saw Dr. Trojan in 2024. The largest group is 65 to 74, with 213 patients. 73% of them have high blood pressure, and 72% have high cholesterol. 7% are also on Medicaid. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Trojan's median patient age at 32, with 57% women.
Dr. Trojan's Medicare patients by age, 2024
Dr. Trojan's Medicare patients by sex, 2024
- Women22559%
- Men15841%
Chronic conditions among Dr. Trojan's Medicare patients, 2024
- High blood pressure73%
- High cholesterol72%
- Asthma49%
- Arthritis47%
- Ischemic heart disease26%
- Diabetes25%
- Anxiety20%
- COPD17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Trojan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 32
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy David Trojan wrote 1,889 Medicare Part D claims in 2024
In 2024, Dr. Trojan wrote 1,889 Medicare Part D claims for 373 patients. 65% of them were for generic drugs. CMS names the drug for 1,748 of them, across 29 drugs with 11 or more claims each, at $725,169 in total drug cost. In 2023, CMS named 1,593 claims across 27 drugs.
Dr. Trojan's Part D claims by kind of drug, 2024
- Generic1,228 claims65%
- Brand-name661 claims35%
Dr. Trojan'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,5932024: 1,74810%
Drugs named by CMS: 29 in 2024, 27 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. Timothy David Trojan scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Trojan for performance year 2024, reported as part of a group. Dr. Trojan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Trojan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Timothy David Trojan received $15,487 in industry payments from 2016 to 2025
CMS Open Payments shows 712 general payments to Dr. Trojan from 39 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 86% of the total. AstraZeneca Pharmaceuticals LP paid the most, $2,197.
General payments to Dr. Trojan by program year, 2016 to 2025
General payments to Dr. Trojan by kind, 2016 to 2025
- Food and beverage$13,34586%
- Consulting fees$1,50010%
- Education$4073%
- Debt forgiveness$2352%
Companies that paid Dr. Trojan 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. Timothy David Trojan graduated from University of Texas Southwestern Medical School at Dallas
Dr. Trojan graduated from University of Texas Southwestern Medical School at Dallas in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy David Trojan'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)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. Timothy David Trojan
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. Timothy David Trojan's NPI number?
Dr. Timothy David Trojan's NPI number is 1518125053. It was assigned on May 31, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy David Trojan?
Dr. Timothy David Trojan is an allergist and immunologist in Enid, Oklahoma. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Timothy David Trojan practice?
Dr. Trojan practices at 3201 N Van Buren St, Enid, OK 73703. Dr. Trojan's primary practice is Allergy Partners of Oklahoma in Enid, Oklahoma. Dmand AI also links Dr. Trojan to 2 hospitals, 3 group practices and clinics and 2 medical groups.
What is Dr. Timothy David Trojan's office phone number?
The practice phone on file for Dr. Trojan is (580) 366-0844.
What is Dr. Timothy David Trojan's medical license number?
Dr. Trojan holds Oklahoma license 29671.
Which hospitals is Dr. Timothy David Trojan affiliated with?
Dr. Trojan is affiliated with St. Mary's Regional Medical Center. Dmand AI links Dr. Trojan to 2 more hospitals.
What medical group is Dr. Timothy David Trojan part of?
Dr. Trojan is linked to Allergy Partners of Crestview Hills. Dmand AI links Dr. Trojan to 2 more medical groups.
Does Dr. Timothy David Trojan accept Medicare?
Yes. CMS data shows Dr. Trojan billed Medicare for 9,035 services in 2024, and Dr. Trojan accepts Medicare assignment.
Does Dr. Timothy David Trojan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Trojan as offering telehealth services.
What is Dr. Timothy David Trojan's MIPS score?
Dr. Trojan's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Timothy David Trojan see?
CMS counts 383 Medicare patients who saw Dr. Trojan in 2024, with an average age of 71.
What services does Dr. Timothy David Trojan bill to Medicare?
In 2024, Dr. Trojan's most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95165) and allergy test or treatment (95117).
Where did Dr. Timothy David Trojan go to medical school?
Dr. Trojan graduated from University of Texas Southwestern Medical School at Dallas in 2008.
What drugs does Dr. Timothy David Trojan prescribe most?
In 2024 Medicare Part D data, Dr. Trojan's most prescribed drugs by claims were Ipratropium Bromide, Montelukast Sodium and Azelastine HCl.
Has Dr. Timothy David Trojan received payments from drug or device companies?
CMS Open Payments shows $15,487 in general payments to Dr. Trojan from 39 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Timothy David Trojan been practicing?
Dr. Trojan graduated from medical school in 2008, 18 years ago.
Selling to allergy and immunology practices?
See allergists and immunologists in Oklahoma by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card