Thomas Michael Fields, PA

  • Austin, TX
  • Physician assistant
NPI1346443900PAC ID4688769433
Medicare services, 2024
2,488
Medicare patients, 2024
309
Part D claims, 2024
6,604
Hospital affiliations
2
Industry payments
$569
Practice address
5625 Eiger Rd, Austin, TX 78735
Practice phone
Call (512) 892-7076
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

South Austin Family Practice Clinic

Austin, Texas

See all 7 affiliations

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Thomas Michael Fields is a physician assistant in Austin, Texas

Thomas Fields practices at South Austin Family Practice Clinic in Austin, Texas.

Thomas Fields' NPI, 1346443900, was assigned on June 8, 2007. Thomas Fields holds Texas license PA04342.

NPI and contact details
Medicare PAC ID
4688769433
NPI enumeration date
June 8, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(512) 892-7076
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
48
Medical school graduation
2004

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Thomas Michael Fields practices at South Austin Family Practice Clinic in Austin, Texas

Thomas Fields' primary practice is South Austin Family Practice Clinic, at 5625 Eiger Rd, Austin, TX 78735 in Travis County. The practice phone is (512) 892-7076.

  • South Austin Family Practice Clinic
    5625 Eiger Rd, Austin, TX 78735 · Travis CountyPhone(512) 892-7076

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Thomas Michael Fields is affiliated with 5 sites of care and 2 medical groups

Thomas Fields' primary practice is South Austin Family Practice Clinic in Austin, Texas. Thomas Fields is also affiliated with St. David's South Austin Medical Center. The medical group on file is Premier Family Physicians. Dmand AI also links Thomas Fields to 1 more hospital, 1 group practice or clinic, 1 home health agency and 1 medical group, each named with a free account.

See all 7 affiliations for Thomas Fields

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Thomas Michael Fields' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Thomas Fields practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
South Austin Family Practice ClinicAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Thomas Michael Fields is one of 8,663 physician assistants in Texas

Physician assistant is Thomas Fields' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Thomas Fields is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Thomas Fields is licensed in Texas.

Specialties and state licenses

  • Physician assistant, TexasPrimaryLicense PA04342 · taxonomy 363A00000X

Clinical focus

Dmand AI lists acute sinusitis, acute skin infection, ADHD, alzheimer's disease, anxiety, arteritis, asthma and bronchitis among the conditions Thomas Fields treats.

Physician assistants near Thomas Fields

Counts of physician assistants 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

Thomas Michael Fields billed Medicare for 2,488 services in 2024

CMS data shows 2,488 Medicare services from Thomas Fields across 16 procedure codes in 2024, for 309 Medicare patients. Medicare paid $62,517 for them. Every service was in an office.

Medicare services, 20242,488
Medicare patients309
Paid by Medicare$62,517
Procedure codes16

Thomas Fields' Medicare services by type, 2024

  1. Drugs given in the office1,123
  2. Other services657
  3. Office and hospital visits609
  4. Tests and treatments50
  5. Surgery30
  6. Lab and pathology19

Thomas Fields compared with the Texas median for physician assistants, 2024

  • Thomas Fields
  • Texas median
Medicare services
2,488vs 22910.9 times
Medicare patients
309vs 993.1 times
Part D claims
5,949vs 29620.1 times

Medians across 5,541 physician assistants in Texas with Dmand AI profiles that report each measure.

Thomas Fields' 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Thomas Michael Fields treated 309 Medicare patients in 2024, average age 73

CMS counts 309 Medicare patients who saw Thomas Fields in 2024. The largest group is 65 to 74, with 155 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 5% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Thomas Fields' median patient age at 68, with 46% women.

Medicare patients, 2024309
Average age73
Average risk score1.23
Also on Medicaid5%

Thomas Fields' Medicare patients by age, 2024

Thomas Fields' Medicare patients by sex, 2024

  • Women15049%
  • Men15951%

Chronic conditions among Thomas Fields' Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure74%
  3. Arthritis39%
  4. Ischemic heart disease30%
  5. Chronic kidney disease28%
  6. Depression28%
  7. Diabetes28%
  8. Mood disorders28%

Share of Medicare patients with each condition. A patient can have several.

Thomas Fields' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women46%
  • Men53%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Thomas Michael Fields wrote 6,604 Medicare Part D claims in 2024

In 2024, Thomas Fields wrote 6,604 Medicare Part D claims for 562 patients. 89% of them were for generic drugs. CMS names the drug for 5,949 of them, across 132 drugs with 11 or more claims each, at $463,419 in total drug cost.

Part D claims, 20246,604
Drugs named by CMS132
Total drug cost$463,419
Part D patients562

Thomas Fields' Part D claims by kind of drug, 2024

  • Generic5,846 claims89%
  • Brand-name723 claims11%
  • Other35 claims1%

Thomas Fields' 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 Thomas Fields' Part D claims, 2024

  • Opioids2%113 of 6,604 claims
  • Antibiotics3%205 of 6,604 claims
  • Antipsychotics, patients 65 and over1%47 of 6,604 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Thomas Fields

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

Thomas Michael Fields offers telehealth to Medicare patients

Thomas Fields accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Thomas Fields as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Thomas Michael Fields received $569 in industry payments from 2024 to 2025

CMS Open Payments shows 32 general payments to Thomas Fields from 15 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $96.

General payments to Thomas Fields by program year, 2024 to 2025

Companies that paid Thomas Fields the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Thomas Fields

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Thomas Michael Fields is board certified in certified physician assistant

  1. Board certified in certified physician assistantNational Commission on Certification of Physician Assistants (NCCPA)

Source: Dmand AI Professional Profile Data

Sources for Thomas Michael Fields's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Thomas Michael Fields

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Thomas Michael Fields' NPI number?

Thomas Michael Fields' NPI number is 1346443900. It was assigned on June 8, 2007, and it is active in the NPI Registry.

What does Thomas Michael Fields specialize in?

Thomas Michael Fields is a physician assistant in Austin, Texas. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Thomas Michael Fields practice?

Thomas Fields practices at 5625 Eiger Rd, Austin, TX 78735. Thomas Fields' primary practice is South Austin Family Practice Clinic in Austin, Texas. Dmand AI also links Thomas Fields to 1 hospital, 1 group practice or clinic, 1 home health agency and 1 medical group.

What is Thomas Michael Fields' office phone number?

The practice phone on file for Thomas Fields is (512) 892-7076.

What is Thomas Michael Fields' medical license number?

Thomas Fields holds Texas license PA04342.

Which hospitals is Thomas Michael Fields affiliated with?

Thomas Fields is affiliated with St. David's South Austin Medical Center. Dmand AI links Thomas Fields to 1 more hospital.

What medical group is Thomas Michael Fields part of?

Thomas Fields is linked to Premier Family Physicians. Dmand AI links Thomas Fields to 1 more medical group.

Does Thomas Michael Fields accept Medicare?

Yes. CMS data shows Thomas Fields billed Medicare for 2,488 services in 2024, and Thomas Fields accepts Medicare assignment.

Does Thomas Michael Fields offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Thomas Fields as offering telehealth services.

How many Medicare patients does Thomas Michael Fields see?

CMS counts 309 Medicare patients who saw Thomas Fields in 2024, with an average age of 73.

Show 5 more questionsShow fewer questions

Is Thomas Michael Fields board certified?

Yes. Thomas Fields is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).

What services does Thomas Michael Fields bill to Medicare?

In 2024, Thomas Fields' most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99213) and office visit, established patient (99214).

What drugs does Thomas Michael Fields prescribe most?

In 2024 Medicare Part D data, Thomas Fields' most prescribed drugs by claims were Rosuvastatin Calcium, Levothyroxine Sodium and Atorvastatin Calcium.

Has Thomas Michael Fields received payments from drug or device companies?

CMS Open Payments shows $569 in general payments to Thomas Fields from 15 companies from 2024 to 2025. The largest total came from Eli Lilly and Company.

How long has Thomas Michael Fields been practicing?

Thomas Fields graduated from medical school in 2004, 22 years ago.

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