Stephen Paul Thomas II, NP

  • Upland, CA
  • Nurse practitioner
NPI1326584095
Medicare services, 2024
18
Medicare patients, 2024
28
Part D claims, 2024
1,709
Industry payments
$7,819
Affiliated sites
1
Practice address
901 San Bernardino Rd, Upland, CA 91786
Practice phone
Call (951) 278-8870
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mission Surgical Group

Upland, California

See all 3 affiliations

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Stephen Paul Thomas II is a nurse practitioner in Upland, California

Stephen Thomas practices at Mission Surgical Group in Upland, California.

Stephen Thomas' NPI, 1326584095, was assigned on January 18, 2017. Stephen Thomas holds California license 95005872.

NPI and contact details
NPI enumeration date
January 18, 2017
NPI status
Active
Practice phone
(951) 278-8870
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
36
Medical school graduation
2016

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

Stephen Paul Thomas II practices at Mission Surgical Group in Upland, California

Stephen Thomas' primary practice is Mission Surgical Group, at 901 San Bernardino Rd, Upland, CA 91786 in San Bernardino County. The practice phone is (951) 278-8870.

  • Mission Surgical Group
    901 San Bernardino Rd, Upland, CA 91786 · San Bernardino CountyPhone(951) 278-8870

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

Stephen Paul Thomas II is affiliated with 2 sites of care and 1 medical group

Stephen Thomas' primary practice is Mission Surgical Group in Upland, California. The medical group on file is Nephrology Associates Medical Group. Dmand AI also links Stephen Thomas to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Stephen Thomas

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

Dmand AI tracks the EHR system at Stephen Paul Thomas II's practice

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

EHR by site
SiteEHR vendor and product
Mission Surgical GroupAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Stephen Paul Thomas II is one of 5,983 nurse practitioners in California

Nurse practitioner is Stephen Thomas' primary specialty in the NPI Registry, under taxonomy code 363L00000X. Stephen Thomas is licensed in California.

Specialties and state licenses

  • Nurse practitioner, CaliforniaPrimaryLicense 95005872 · taxonomy 363L00000X

Nurse practitioners near Stephen Thomas

Counts of nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.

5,983nurse practitioners in California
9nurse practitioners in Upland

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Stephen Paul Thomas II billed Medicare for 18 services in 2024

CMS data shows 18 Medicare services from Stephen Thomas across 1 procedure code in 2024, for 28 Medicare patients. Medicare paid $3,688 for them. Every service was in an office.

Medicare services, 202418
Medicare patients28
Paid by Medicare$3,688
Procedure codes1

Stephen Thomas compared with the California median for nurse practitioners, 2024

  • Stephen Thomas
  • California median
Medicare services
18vs 27994% below
Medicare patients
28vs 9270% below
Part D claims
1,446vs 3664.0 times

Medians across 3,047 nurse practitioners in California with Dmand AI profiles that report each measure.

Stephen Thomas' 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

Stephen Paul Thomas II treated 28 Medicare patients in 2024, average age 65

CMS counts 28 Medicare patients who saw Stephen Thomas in 2024. The largest group is 65 to 74, with 14 patients. 75% of them have chronic kidney disease, and 75% have diabetes. 54% are also on Medicaid. Their average risk score is 7.55, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Stephen Thomas' median patient age at 66, with 25% women.

Medicare patients, 202428
Average age65
Average risk score7.55
Also on Medicaid54%

Stephen Thomas' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Stephen Thomas' Medicare patients by sex, 2024

  • Women1346%
  • Men1554%

Chronic conditions among Stephen Thomas' Medicare patients, 2024

  1. Chronic kidney disease75%
  2. Diabetes75%
  3. High blood pressure75%
  4. High cholesterol75%
  5. Heart failure68%
  6. Ischemic heart disease54%
  7. Atrial fibrillation46%

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

Stephen Thomas' patients across all payers

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

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women25%
  • Men75%

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

Stephen Paul Thomas II wrote 1,709 Medicare Part D claims in 2024

In 2024, Stephen Thomas wrote 1,709 Medicare Part D claims for 230 patients. 70% of them were for generic drugs. CMS names the drug for 1,446 of them, across 41 drugs with 11 or more claims each, at $511,257 in total drug cost.

Part D claims, 20241,709
Drugs named by CMS41
Total drug cost$511,257
Part D patients230

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

  • Generic1,188 claims70%
  • Brand-name505 claims30%
  • Other16 claims1%

Stephen Thomas' 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 Stephen Thomas' Part D claims, 2024

  • Antibiotics2%30 of 1,709 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 Stephen Thomas

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

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Stephen Paul Thomas II received $7,819 in industry payments from 2024 to 2025

CMS Open Payments shows 79 general payments to Stephen Thomas from 8 drug and device companies from 2024 to 2025. Speaker and faculty fees make up the largest share, 40% of the total. Relypsa, Inc. paid the most, $5,463.

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

General payments to Stephen Thomas by kind, 2024 to 2025

$7.8Kin total
  • Speaker and faculty fees$3,15040%
  • Food and beverage$3,06539%
  • Travel and lodging$1,22916%
  • Consulting fees$3755%

Companies that paid Stephen Thomas the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Stephen Thomas

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

Sources for Stephen Paul Thomas II'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 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Stephen Paul Thomas II

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

What is Stephen Paul Thomas II's NPI number?

Stephen Paul Thomas II's NPI number is 1326584095. It was assigned on January 18, 2017, and it is active in the NPI Registry.

What does Stephen Paul Thomas II specialize in?

Stephen Paul Thomas II is a nurse practitioner in Upland, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).

Where does Stephen Paul Thomas II practice?

Stephen Thomas practices at 901 San Bernardino Rd, Upland, CA 91786. Stephen Thomas' primary practice is Mission Surgical Group in Upland, California. Dmand AI also links Stephen Thomas to 1 group practice or clinic.

What is Stephen Paul Thomas II's office phone number?

The practice phone on file for Stephen Thomas is (951) 278-8870.

What is Stephen Paul Thomas II's medical license number?

Stephen Thomas holds California license 95005872.

What medical group is Stephen Paul Thomas II part of?

Stephen Thomas is linked to Nephrology Associates Medical Group.

Does Stephen Paul Thomas II accept Medicare?

Yes. CMS data shows Stephen Thomas billed Medicare for 18 services in 2024.

How many Medicare patients does Stephen Paul Thomas II see?

CMS counts 28 Medicare patients who saw Stephen Thomas in 2024, with an average age of 65.

What services does Stephen Paul Thomas II bill to Medicare?

In 2024, Stephen Thomas' most billed Medicare services were dialysis (90961).

What drugs does Stephen Paul Thomas II prescribe most?

In 2024 Medicare Part D data, Stephen Thomas' most prescribed drugs by claims were Prosol, Clinolipid and Sevelamer Carbonate.

Has Stephen Paul Thomas II received payments from drug or device companies?

CMS Open Payments shows $7,819 in general payments to Stephen Thomas from 8 companies from 2024 to 2025. The largest total came from Relypsa, Inc.

How long has Stephen Paul Thomas II been practicing?

Stephen Thomas graduated from medical school in 2016, 10 years ago.

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