Charles Mack Grubb, PA
- Medicare services, 2024
- 262
- Medicare patients, 2024
- 63
- Part D claims, 2024
- 621
- Affiliated sites
- 3
- Medical groups
- 3
- Practice address
- 6750 N Macarthur Blvd Ste 350 Suite 350, Irving, TX 75039
- Practice phone
- Call (972) 556-1616
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Usmd Physician Services
Primary care practice · Irving, Texas
Find Charles Grubb'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.
Charles Mack Grubb is a physician assistant in Irving, Texas
Charles Grubb practices at Usmd Physician Services in Irving, Texas.
Charles Grubb's NPI, 1366484354, was assigned on June 12, 2006. Charles Grubb holds Texas license PA03541.
- NPI
- 1366484354NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678602794
- NPI enumeration date
- June 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (972) 556-1616
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Charles Mack Grubb practices at Usmd Physician Services in Irving, Texas
Charles Grubb's primary practice is Usmd Physician Services, at 6750 N Macarthur Blvd Ste 350 Suite 350, Irving, TX 75039. The practice phone is (972) 556-1616.
- Usmd Physician Services6750 N Macarthur Blvd Ste 350 Suite 350, Irving, TX 75039Phone(972) 556-1616
Source: Dmand AI Affiliation Data
Charles Mack Grubb is affiliated with 3 sites of care and 3 medical groups
Charles Grubb's primary practice is Usmd Physician Services in Irving, Texas. The medical group on file is WellMed Medical Management. Dmand AI also links Charles Grubb to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Charles Mack Grubb's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Charles Grubb practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Usmd Physician Services | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Charles Mack Grubb is one of 8,663 physician assistants in Texas
Physician assistant is Charles Grubb's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Charles Grubb is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Charles Grubb is licensed in Texas.
Specialties and state licenses
- Physician assistant, TexasPrimary
Clinical focus
Dmand AI lists acute skin infection, chronic kidney disease, diabetic emergency, enlarged prostate, insomnia, itchy rashes, lower back pain and skin cyst among the conditions Charles Grubb treats.
Physician assistants near Charles Grubb
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
Charles Mack Grubb billed Medicare for 262 services in 2024
CMS data shows 262 Medicare services from Charles Grubb across 11 procedure codes in 2024, for 63 Medicare patients. Medicare paid $6,787 for them. Every service was in an office.
Charles Grubb's Medicare services by type, 2024
- Lab and pathology144
- Office and hospital visits63
- Other services44
- Surgery11
Charles Grubb compared with the Texas median for physician assistants, 2024
- Charles Grubb
- Texas median
- Medicare services
- 262vs 22914% above
- Medicare patients
- 63vs 9936% below
- Part D claims
- 330vs 29611% above
Medians across 5,541 physician assistants in Texas with Dmand AI profiles that report each measure.
Charles Grubb'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Charles Mack Grubb treated 63 Medicare patients in 2024, average age 75
CMS counts 63 Medicare patients who saw Charles Grubb in 2024. The largest group is 75 to 84, with 29 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Charles Grubb's median patient age at 64, with 33% women.
Charles Grubb's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Charles Grubb's Medicare patients by sex, 2024
- Women3048%
- Men3352%
Chronic conditions among Charles Grubb's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Chronic kidney disease30%
- Diabetes27%
- Anxiety24%
- Depression24%
- Mood disorders24%
Share of Medicare patients with each condition. A patient can have several.
Charles Grubb's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women33%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Charles Mack Grubb wrote 621 Medicare Part D claims in 2024
In 2024, Charles Grubb wrote 621 Medicare Part D claims for 134 patients. 88% of them were for generic drugs. CMS names the drug for 330 of them, across 18 drugs with 11 or more claims each, at $12,157 in total drug cost.
Charles Grubb's Part D claims by kind of drug, 2024
- Generic545 claims88%
- Brand-name and other76 claims12%
Charles Grubb'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 Charles Grubb's Part D claims, 2024
- Antibiotics4%26 of 621 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
How Charles Mack Grubb takes part in Medicare
Charles Grubb accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Charles Mack Grubb is board certified in certified physician assistant
Charles Grubb is a member of AAPA.
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Charles Mack Grubb'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 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) |
| 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 Charles Mack Grubb
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Charles Mack Grubb's NPI number?
Charles Mack Grubb's NPI number is 1366484354. It was assigned on June 12, 2006, and it is active in the NPI Registry.
What does Charles Mack Grubb specialize in?
Charles Mack Grubb is a physician assistant in Irving, Texas. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Charles Mack Grubb practice?
Charles Grubb practices at 6750 N Macarthur Blvd Ste 350 Suite 350, Irving, TX 75039. Charles Grubb's primary practice is Usmd Physician Services in Irving, Texas. Dmand AI also links Charles Grubb to 2 group practices and clinics and 2 medical groups.
What is Charles Mack Grubb's office phone number?
The practice phone on file for Charles Grubb is (972) 556-1616.
What is Charles Mack Grubb's medical license number?
Charles Grubb holds Texas license PA03541.
What medical group is Charles Mack Grubb part of?
Charles Grubb is linked to WellMed Medical Management. Dmand AI links Charles Grubb to 2 more medical groups.
Does Charles Mack Grubb accept Medicare?
Yes. CMS data shows Charles Grubb billed Medicare for 262 services in 2024, and Charles Grubb accepts Medicare assignment.
How many Medicare patients does Charles Mack Grubb see?
CMS counts 63 Medicare patients who saw Charles Grubb in 2024, with an average age of 75.
Is Charles Mack Grubb board certified?
Yes. Charles Grubb is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Charles Mack Grubb bill to Medicare?
In 2024, Charles Grubb's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and lab and pathology test (80053).
What drugs does Charles Mack Grubb prescribe most?
In 2024 Medicare Part D data, Charles Grubb's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Rosuvastatin Calcium.
How long has Charles Mack Grubb been practicing?
Charles Grubb graduated from medical school in 2002, 24 years ago.
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