Dr. John Frederick Shield, MD
- Medicare services, 2024
- 4,061
- Medicare patients, 2024
- 910
- Part D claims, 2024
- 9,360
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 1606 N Seventh St, Terre Haute, IN 47804
- Practice phone
- Call (812) 238-7606
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Shield'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. John Frederick Shield is an internist in Terre Haute, Indiana
Dr. Shield practices at Union Hospital in Terre Haute, Indiana, part of Union Health System.
Dr. Shield's NPI, 1033189634, was assigned on January 25, 2006. Dr. Shield graduated from Loma Linda University School Of Medicine in 1979. Dr. Shield's California license number on file is G45205.
- NPI
- 1033189634NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7911078563
- NPI enumeration date
- January 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (812) 238-7606
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Frederick Shield practices at Union Hospital in Terre Haute, Indiana
Dr. Shield's primary practice is Union Hospital, at 1606 N Seventh St, Terre Haute, IN 47804 in Vigo County. The practice phone is (812) 238-7606.
- Union Hospital1606 N Seventh St, Terre Haute, IN 47804 · Vigo CountyPhone(812) 238-7606
Source: Dmand AI Affiliation Data
Dr. John Frederick Shield is affiliated with 4 sites of care and 3 medical groups
Dr. Shield's primary practice is Union Hospital in Terre Haute, Indiana, part of Union Health System. Dr. Shield is also affiliated with Adventist Health Sonora. The medical group on file is Union Medical Group. Dmand AI also links Dr. Shield to 2 more medical groups, 1 community health center and 1 group practice or clinic, 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. John Frederick Shield's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shield practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Union Hospital | Available with a free account |
| +3 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 Union Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Frederick Shield is one of 1,987 internists in Indiana
Internal medicine is Dr. Shield's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Shield is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Shield's licenses on file in 3 states: California, Massachusetts and Texas.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Massachusetts license
- Texas license
Clinical focus
Dmand AI lists acid reflux, acute mini-stroke (TIA), acute skin infection, alcohol use disorders, alzheimer's disease, aneurysm, ankle or foot injury and anxiety among the conditions Dr. Shield treats.
Internists near Dr. Shield
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. John Frederick Shield billed Medicare for 4,061 services in 2024
CMS data shows 4,061 Medicare services from Dr. Shield across 11 procedure codes in 2024, for 910 Medicare patients. Medicare paid $120,104 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Shield's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,6782024: 1,5935%
- Tests and treatments
- 2023: 9232024: 1,23233%
- Other services
- 2023: 02024: 1,220
- Surgery
- 2023: 02024: 16
Dr. Shield compared with the Indiana median for internists, 2024
- Dr. Shield
- Indiana median
- Medicare services
- 4,061vs 5207.8 times
- Medicare patients
- 910vs 2124.3 times
- Part D claims
- 8,815vs 15955.4 times
Medians across 1,948 internists in Indiana with Dmand AI profiles that report each measure.
Dr. Shield'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. Shield and other internists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Frederick Shield treated 910 Medicare patients in 2024, average age 76
CMS counts 910 Medicare patients who saw Dr. Shield in 2024. The largest group is 65 to 74, with 368 patients. 75% of them have high blood pressure, and 56% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Shield's median patient age at 78, with 52% women.
Dr. Shield's Medicare patients by age, 2024
Dr. Shield's Medicare patients by sex, 2024
- Women44849%
- Men46251%
Chronic conditions among Dr. Shield's Medicare patients, 2024
- High blood pressure75%
- High cholesterol56%
- Arthritis41%
- COPD29%
- Diabetes25%
- Ischemic heart disease21%
- Anxiety19%
- Atrial fibrillation19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shield's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Frederick Shield wrote 9,360 Medicare Part D claims in 2024
In 2024, Dr. Shield wrote 9,360 Medicare Part D claims for 575 patients. 87% of them were for generic drugs. CMS names the drug for 8,815 of them, across 113 drugs with 11 or more claims each, at $870,377 in total drug cost. In 2023, CMS named 8,852 claims across 114 drugs.
Dr. Shield's Part D claims by kind of drug, 2024
- Generic8,102 claims87%
- Brand-name1,219 claims13%
- Other39 claims0%
Dr. Shield'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. Shield's Part D claims, 2024
- Opioids1%82 of 9,360 claims
- Antibiotics1%90 of 9,360 claims
- Antipsychotics, patients 65 and over1%61 of 9,360 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: 8,8522024: 8,815No change
Drugs named by CMS: 113 in 2024, 114 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. John Frederick Shield scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Shield for performance year 2024, reported as part of a group. Dr. Shield accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Shield's MIPS scores, performance year 2024
- 85of 100Final score
- 81.7of 100Quality
- 97of 100Promoting Interoperability
- 40of 100Improvement Activities
- 67of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
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 Frederick Shield received $126 in industry payments from 2016 to 2018
CMS Open Payments shows 5 general payments to Dr. Shield from 3 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 89% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $97.
General payments to Dr. Shield by program year, 2016 to 2018
General payments to Dr. Shield by kind, 2016 to 2018
- Food and beverage$11289%
- Education$1411%
Companies that paid Dr. Shield the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Frederick Shield serves on 1 committee
Dr. Shield serves on Medical Executive Committee.
Dr. Shield's committees and leadership roles
- Medical Executive CommitteeAt large
- 2016 to present
- Utilization ManagementChairman
- 2016 to 2018
Source: Dmand AI Professional Profile Data
Dr. John Frederick Shield graduated from Loma Linda University School Of Medicine
Dr. Shield graduated from Loma Linda University School Of Medicine in 1979. Dr. Shield is a member of ACP.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John Frederick Shield accepts plans from 13 insurance carriers
Dr. Shield is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Regence Health Plans
- Alliant Health Plans
- Aspirus Health Plan
- +5 more carriersWith a free account
Plan types Dr. Shield accepts, by number of carriers
- PPO8
- Medicare7
- HMO6
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. John Frederick Shield'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John Frederick Shield
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 Frederick Shield's NPI number?
Dr. John Frederick Shield's NPI number is 1033189634. It was assigned on January 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Frederick Shield?
Dr. John Frederick Shield is an internist in Terre Haute, Indiana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Frederick Shield practice?
Dr. Shield practices at 1606 N Seventh St, Terre Haute, IN 47804. Dr. Shield's primary practice is Union Hospital in Terre Haute, Indiana, part of Union Health System. Dmand AI also links Dr. Shield to 2 medical groups, 1 community health center and 1 group practice or clinic.
What is Dr. John Frederick Shield's office phone number?
The practice phone on file for Dr. Shield is (812) 238-7606.
What is Dr. John Frederick Shield's medical license number?
Dr. Shield's California license number on file is G45205, one of the licenses on file in 3 states.
Which states has Dr. John Frederick Shield been licensed in?
Dmand AI has state licenses on file for Dr. Shield in California (1981 to 2025), Massachusetts (1987 to 1997) and Texas (1985 to 1987).
Which hospitals is Dr. John Frederick Shield affiliated with?
Dr. Shield practices at Union Hospital in Terre Haute, Indiana. Dr. Shield is also affiliated with Adventist Health Sonora.
What medical group is Dr. John Frederick Shield part of?
Dr. Shield is linked to Union Medical Group. Dmand AI links Dr. Shield to 2 more medical groups.
Does Dr. John Frederick Shield accept Medicare?
Yes. CMS data shows Dr. Shield billed Medicare for 4,061 services in 2024, and Dr. Shield accepts Medicare assignment.
What is Dr. John Frederick Shield's MIPS score?
Dr. Shield's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. John Frederick Shield see?
CMS counts 910 Medicare patients who saw Dr. Shield in 2024, with an average age of 76.
Is Dr. John Frederick Shield board certified?
Yes. Dr. Shield is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. John Frederick Shield bill to Medicare?
In 2024, Dr. Shield's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. John Frederick Shield go to medical school?
Dr. Shield graduated from Loma Linda University School Of Medicine in 1979.
What drugs does Dr. John Frederick Shield prescribe most?
In 2024 Medicare Part D data, Dr. Shield's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Valsartan.
Has Dr. John Frederick Shield received payments from drug or device companies?
CMS Open Payments shows $126 in general payments to Dr. Shield from 3 companies from 2016 to 2018. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. John Frederick Shield been practicing?
Dr. Shield graduated from medical school in 1979, 47 years ago.
What insurance does Dr. John Frederick Shield accept?
Dr. Shield is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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