Mary Grace Nitro Thomas, FNP-C

  • Duarte, CA
  • Nurse practitioner
NPI1093420747PAC ID3971962473
Medicare services, 2024
29
Medicare patients, 2024
29
Part D claims, 2024
131
MIPS score, 2024
93
Industry payments
$304
Practice address
1500 Duarte Rd, Duarte, CA 91010
Practice phone
Call (800) 826-4673
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

City of Hope Comprehensive Cancer Center - Duarte

Duarte, California

See all 3 affiliations

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Mary Grace Nitro Thomas is a nurse practitioner in Duarte, California

Mary Grace Thomas practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.

Mary Grace Thomas' NPI, 1093420747, was assigned on January 17, 2023. Mary Grace Thomas holds California license 95022511.

NPI and contact details
Medicare PAC ID
3971962473
NPI enumeration date
January 17, 2023
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(800) 826-4673
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
30
Medical school graduation
2022

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

Mary Grace Nitro Thomas practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California

Mary Grace Thomas' primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.

  • City of Hope Comprehensive Cancer Center - Duarte
    1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673

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

Mary Grace Nitro Thomas is affiliated with 2 sites of care and 1 medical group

Mary Grace Thomas' primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. The medical group on file is City of Hope. Dmand AI also links Mary Grace Thomas to 1 more other site, named with a free account.

See all 3 affiliations for Mary Grace Thomas

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 Mary Grace Nitro Thomas' practice

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

EHR by site
SiteEHR vendor and product
City of Hope Comprehensive Cancer Center - DuarteAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Mary Grace Nitro Thomas is one of 5,983 nurse practitioners in California

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

Specialties and state licenses

  • Nurse practitioner, CaliforniaPrimaryLicense 95022511 · taxonomy 363L00000X

Nurse practitioners near Mary Grace Thomas

Counts of nurse practitioners 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

Mary Grace Nitro Thomas billed Medicare for 29 services in 2024

CMS data shows 29 Medicare services from Mary Grace Thomas across 1 procedure code in 2024, all of them office visits, for 29 Medicare patients. Medicare paid $2,942 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202429
Medicare patients29
Paid by Medicare$2,942
Procedure codes1

Mary Grace Thomas compared with the California median for nurse practitioners, 2024

  • Mary Grace Thomas
  • California median
Medicare services
29vs 27990% below
Medicare patients
29vs 9268% below
Part D claims
51vs 36686% below

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

Mary Grace 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.

See all procedures by Mary Grace Thomas

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

Mary Grace Nitro Thomas treated 29 Medicare patients in 2024, average age 71

CMS counts 29 Medicare patients who saw Mary Grace Thomas in 2024. 72% of them have high blood pressure, and 62% have high cholesterol. Their average risk score is 2.49, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Mary Grace Thomas' median patient age at 66, with 40% women.

Medicare patients, 202429
Average age71
Average risk score2.49

Mary Grace Thomas' Medicare patients by sex, 2024

  • Women1448%
  • Men1552%

Chronic conditions among Mary Grace Thomas' Medicare patients, 2024

  1. High blood pressure72%
  2. High cholesterol62%

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

Mary Grace 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

  • Women40%
  • Men59%

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

Mary Grace Nitro Thomas wrote 131 Medicare Part D claims in 2024

In 2024, Mary Grace Thomas wrote 131 Medicare Part D claims for 48 patients. 93% of them were for generic drugs. CMS names the drug for 51 of them, across 4 drugs with 11 or more claims each, at $615 in total drug cost.

Part D claims, 2024131
Drugs named by CMS4
Total drug cost$615
Part D patients48

Mary Grace Thomas' Part D claims by kind of drug, 2024

  • Generic122 claims93%
  • Brand-name and other9 claims7%

Mary Grace 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 Mary Grace Thomas' Part D claims, 2024

  • Antibiotics18%24 of 131 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 Mary Grace 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

Mary Grace Nitro Thomas scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Mary Grace Thomas for performance year 2024, reported as part of a group. Mary Grace Thomas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Mary Grace Thomas' MIPS scores, performance year 2024

  • 93of 100Final score
  • 78.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

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

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Mary Grace Nitro Thomas received $304 in industry payments from 2024 to 2025

CMS Open Payments shows 9 general payments to Mary Grace Thomas from 9 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 75% of the total. Incyte Corporation paid the most, $82.

General payments to Mary Grace Thomas by program year, 2024 to 2025

General payments to Mary Grace Thomas by kind, 2024 to 2025

$304in total
  • Food and beverage$22975%
  • Education$7525%

Companies that paid Mary Grace Thomas the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Mary Grace Thomas

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

Sources for Mary Grace Nitro Thomas'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)Clinician Public Reporting: Overall MIPS Performance (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 Mary Grace Nitro Thomas

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

What is Mary Grace Nitro Thomas' NPI number?

Mary Grace Nitro Thomas' NPI number is 1093420747. It was assigned on January 17, 2023, and it is active in the NPI Registry.

What does Mary Grace Nitro Thomas specialize in?

Mary Grace Nitro Thomas is a nurse practitioner in Duarte, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).

Where does Mary Grace Nitro Thomas practice?

Mary Grace Thomas practices at 1500 Duarte Rd, Duarte, CA 91010. Mary Grace Thomas' primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Mary Grace Thomas to 1 other site.

What is Mary Grace Nitro Thomas' office phone number?

The practice phone on file for Mary Grace Thomas is (800) 826-4673.

What is Mary Grace Nitro Thomas' medical license number?

Mary Grace Thomas holds California license 95022511.

What medical group is Mary Grace Nitro Thomas part of?

Mary Grace Thomas is linked to City of Hope.

Does Mary Grace Nitro Thomas accept Medicare?

Yes. CMS data shows Mary Grace Thomas billed Medicare for 29 services in 2024, and Mary Grace Thomas accepts Medicare assignment.

What is Mary Grace Nitro Thomas' MIPS score?

Mary Grace Thomas' MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

How many Medicare patients does Mary Grace Nitro Thomas see?

CMS counts 29 Medicare patients who saw Mary Grace Thomas in 2024, with an average age of 71.

What services does Mary Grace Nitro Thomas bill to Medicare?

In 2024, Mary Grace Thomas' most billed Medicare services were office visit, established patient (99215).

Show 3 more questionsShow fewer questions

What drugs does Mary Grace Nitro Thomas prescribe most?

In 2024 Medicare Part D data, Mary Grace Thomas' most prescribed drugs by claims were Sulfamethoxazole-Trimethoprim, Fluconazole and Lorazepam.

Has Mary Grace Nitro Thomas received payments from drug or device companies?

CMS Open Payments shows $304 in general payments to Mary Grace Thomas from 9 companies from 2024 to 2025. The largest total came from Incyte Corporation.

How long has Mary Grace Nitro Thomas been practicing?

Mary Grace Thomas graduated from medical school in 2022, 4 years ago.

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