Katherine J. Huynh, PA-C

  • Philadelphia, PA
  • Physician assistant
NPI1174640502
Part D claims, 2024
3,280
Industry payments
$184
Affiliated sites
2
Medical groups
2
State license
1
Practice address
1200 Callowhill Street, Phila, PA 19123
Practice phone
Call (215) 787-9617
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

PHMC Health Callowhill - Phila (Callowhill St)

FQHC - Main Site · Phila, Pennsylvania

See all 4 affiliations

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Katherine J. Huynh is a physician assistant in Philadelphia, Pennsylvania

Katherine Huynh practices at PHMC Health Callowhill - Phila (Callowhill St) in Phila, Pennsylvania.

Katherine Huynh's NPI, 1174640502, was assigned on March 22, 2007. Katherine Huynh holds Pennsylvania license MA051539.

NPI and contact details
NPI enumeration date
March 22, 2007
NPI status
Active
Practice phone
(215) 787-9617
Professional email
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Personal email
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Mobile number
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Sex
Female

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

Katherine J. Huynh practices in Phila and Philadelphia

Katherine Huynh's primary practice is PHMC Health Callowhill - Phila (Callowhill St), at 1200 Callowhill Street, Phila, PA 19123 in Philadelphia County. The practice phone is (215) 787-9617. The NPI Registry lists Katherine Huynh's practice address as 5501 Old York Rd, Philadelphia, PA 19141.

  • PHMC Health Callowhill - Phila (Callowhill St)Primary
    1200 Callowhill Street, Phila, PA 19123 · Philadelphia CountyPhone(215) 787-9617
  • NPI Registry address
    5501 Old York Rd, Philadelphia, PA 19141 · Philadelphia County

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

Katherine J. Huynh is affiliated with 2 sites of care and 2 medical groups

Katherine Huynh's primary practice is PHMC Health Callowhill - Phila (Callowhill St) in Phila, Pennsylvania. The medical group on file is Public Health Management Corporation. Dmand AI also links Katherine Huynh to 1 more community health center and 1 medical group, each named with a free account.

See all 4 affiliations for Katherine Huynh

Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Katherine J. Huynh's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Huynh practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
PHMC Health Callowhill - Phila (Callowhill St)Available with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Katherine J. Huynh is one of 6,491 physician assistants in Pennsylvania

Physician assistant is Katherine Huynh's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Katherine Huynh is licensed in Pennsylvania.

Specialties and state licenses

  • Physician assistant, PennsylvaniaPrimaryLicense MA051539 · taxonomy 363A00000X

Physician assistants near Katherine Huynh

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

Katherine J. Huynh's patients have a median age of 52

Across all payers, Dmand AI patient panel data puts Katherine Huynh's median patient age at 52, with 35% women.

Katherine Huynh's patients across all payers

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

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women35%
  • Men65%

Source: Dmand AI Patient Panel Data

Katherine J. Huynh wrote 3,280 Medicare Part D claims in 2024

In 2024, Katherine Huynh wrote 3,280 Medicare Part D claims for 90 patients. 72% of them were for generic drugs.

Part D claims, 20243,280
Part D patients90

Katherine Huynh's Part D claims by kind of drug, 2024

  • Generic2,362 claims72%
  • Brand-name847 claims26%
  • Other71 claims2%

Drug classes CMS tracks in Katherine Huynh's Part D claims, 2024

  • Antibiotics1%40 of 3,280 claims
  • Antipsychotics, patients 65 and over1%18 of 3,280 claims

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

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Katherine J. Huynh received $184 in industry payments in 2025

CMS Open Payments shows 6 general payments to Katherine Huynh from 3 drug and device companies in 2025. Food and beverage make up the largest share, 52% of the total. ViiV Healthcare Company paid the most, $127.

General payments to Katherine Huynh by kind, 2025 to 2025

$184in total
  • Food and beverage$9652%
  • Gifts$8848%

Companies that paid Katherine Huynh the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Katherine Huynh

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

Sources for Katherine J. Huynh'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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 Katherine J. Huynh

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

What is Katherine J. Huynh's NPI number?

Katherine J. Huynh's NPI number is 1174640502. It was assigned on March 22, 2007, and it is active in the NPI Registry.

What does Katherine J. Huynh specialize in?

Katherine J. Huynh is a physician assistant in Philadelphia, Pennsylvania. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Katherine J. Huynh practice?

Katherine Huynh practices at 1200 Callowhill Street, Phila, PA 19123. Katherine Huynh also practices at 5501 Old York Rd, Philadelphia, PA 19141. Katherine Huynh's primary practice is PHMC Health Callowhill - Phila (Callowhill St) in Phila, Pennsylvania. Dmand AI also links Katherine Huynh to 1 community health center and 1 medical group.

What is Katherine J. Huynh's office phone number?

The practice phone on file for Katherine Huynh is (215) 787-9617.

What is Katherine J. Huynh's medical license number?

Katherine Huynh holds Pennsylvania license MA051539.

What medical group is Katherine J. Huynh part of?

Katherine Huynh is linked to Public Health Management Corporation. Dmand AI links Katherine Huynh to 1 more medical group.

Has Katherine J. Huynh received payments from drug or device companies?

CMS Open Payments shows $184 in general payments to Katherine Huynh from 3 companies from 2025 to 2025. The largest total came from ViiV Healthcare Company.

How long has Katherine J. Huynh been practicing?

Katherine Huynh's NPI was assigned in 2007.

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