Grace Chen, PA
- Part D claims, 2024
- 148
- Industry payments
- $274
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2014
- Practice address
- 929 Gessner Rd, Houston, TX 77024
- Practice phone
- Call (713) 337-5277
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ernest G. Layton Jr. MD PA
Houston, Texas
Find Grace Chen'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.
Grace Chen is a physician assistant in Houston, Texas
Grace Chen practices at Ernest G. Layton Jr. MD PA in Houston, Texas.
Grace Chen's NPI, 1124440581, was assigned on January 19, 2014. Grace Chen holds Texas license PA08903.
- NPI
- 1124440581NPI Registry (opens in a new tab)
- NPI enumeration date
- January 19, 2014
- NPI status
- Active
- Practice phone
- (713) 337-5277
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Grace Chen practices at Ernest G. Layton Jr. MD PA in Houston, Texas
Grace Chen's primary practice is Ernest G. Layton Jr. MD PA, at 929 Gessner Rd, Houston, TX 77024 in Harris County. The practice phone is (713) 337-5277.
- Ernest G. Layton Jr. MD PA929 Gessner Rd, Houston, TX 77024 · Harris CountyPhone(713) 337-5277
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Grace Chen is affiliated with 1 site of care and 2 medical groups
Grace Chen's primary practice is Ernest G. Layton Jr. MD PA in Houston, Texas. The medical group on file is ACS Primary Care Physicians Southwest, PA. Dmand AI also links Grace Chen to 1 more medical group, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Grace Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Grace Chen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ernest G. Layton Jr. MD PA | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Grace Chen is one of 8,663 physician assistants in Texas
Physician assistant is Grace Chen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Grace Chen is licensed in Texas.
Specialties and state licenses
- Physician assistant, TexasPrimary
Physician assistants near Grace Chen
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
Grace Chen's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Grace Chen's median patient age at 58, with 60% women.
Grace Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women60%
- Men38%
Source: Dmand AI Patient Panel Data
Grace Chen wrote 148 Medicare Part D claims in 2024
In 2024, Grace Chen wrote 148 Medicare Part D claims for 87 patients. 94% of them were for generic drugs. CMS names the drug for 58 of them, across 4 drugs with 11 or more claims each, at $391 in total drug cost.
Grace Chen's Part D claims by kind of drug, 2024
- Generic139 claims94%
- Brand-name and other9 claims6%
Grace Chen'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 Grace Chen's Part D claims, 2024
- Antibiotics32%47 of 148 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
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Grace Chen received $274 in industry payments from 2024 to 2025
CMS Open Payments shows 12 general payments to Grace Chen from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Incyte Corporation paid the most, $192.
General payments to Grace Chen by program year, 2024 to 2025
Companies that paid Grace Chen the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Grace Chen'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Grace Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Grace Chen's NPI number?
Grace Chen's NPI number is 1124440581. It was assigned on January 19, 2014, and it is active in the NPI Registry.
What does Grace Chen specialize in?
Grace Chen is a physician assistant in Houston, Texas. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Grace Chen practice?
Grace Chen practices at 929 Gessner Rd, Houston, TX 77024. Grace Chen's primary practice is Ernest G. Layton Jr. MD PA in Houston, Texas. Dmand AI also links Grace Chen to 1 medical group.
What is Grace Chen's office phone number?
The practice phone on file for Grace Chen is (713) 337-5277.
What is Grace Chen's medical license number?
Grace Chen holds Texas license PA08903.
What medical group is Grace Chen part of?
Grace Chen is linked to ACS Primary Care Physicians Southwest, PA. Dmand AI links Grace Chen to 1 more medical group.
What drugs does Grace Chen prescribe most?
In 2024 Medicare Part D data, Grace Chen's most prescribed drugs by claims were Ibuprofen, Ondansetron ODT and Cefdinir.
Has Grace Chen received payments from drug or device companies?
CMS Open Payments shows $274 in general payments to Grace Chen from 2 companies from 2024 to 2025. The largest total came from Incyte Corporation.
How long has Grace Chen been practicing?
Grace Chen's NPI was assigned in 2014.
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