1. Home
  2. Directory
  3. Oklahoma
  4. City
  5. Physician Assistant
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DIEM T NGUYENHO PA-C
NPI 1346864378
Physician Assistant in Oklahoma City, OK

Active since June 05, 2020PECOS Enrolled
3433 NW 56TH ST STE 710, OKLAHOMA CITY, OK 73112(405) 951-2141(405) 951-2646 Get Directions Write a Review

NPPES record last updated: July 30, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 30, 2026, Jun 5, 2020 (2 updates tracked since 2020).

About Diem T Nguyenho Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIEM T NGUYENHO PA-C (NPI 1346864378) is an individual physician assistant in Oklahoma City, Oklahoma, licensed in Oklahoma (3215) and active in the NPI registry since June 2020. She is enrolled in Medicare PECOS, is affiliated with Ssm Health St Anthony Hospital - Oklahoma City, and maintains a secondary practice location in Oklahoma City.

NPPES Registry Identity

NPI1346864378
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameDIEM T NGUYENHOCredential: PA-C
Location Address3433 NW 56TH ST STE 710Oklahoma City, OK 73112-4430
Mailing Address3001 Quail Springs Pkwy Fl 5Oklahoma City, OK 73134-2640 · (405) 951-2141 · Fax (405) 951-2646
Phone(405) 951-2141
Fax(405) 951-2646
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateJune 5, 2020
Last NPPES UpdateJuly 30, 20262 updates tracked since enumeration
NPPES CertifiedJuly 30, 2026
✔ NPI 1346864378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in OK · 3215
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
3433 NW 56TH ST STE 710, Oklahoma City, OK 73112
Open in Google Maps ↗

Secondary Practice Location 1

Location 14221 S Western Ave Ste 4005Oklahoma City, OK 73109-3436 · Phone (405) 644-5040 · Fax (405) 644-5039

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Medica, Mending Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Diem T Nguyenho Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3870915960
PECOS Enrollment IDI20200618000819
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
232 services183 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
89 services74 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
32 services32 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
24 services24 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
20 services20 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ssm Health St Anthony Hospital - Oklahoma City

Acute Care Hospitals · Oklahoma City, OK
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number370037
Location1000 North Lee AvenueOklahoma City, OK 73101 · Oklahoma County
Emergency services Birthing friendly

Ssm Health St Anthony Hospital - Shawnee

Acute Care Hospitals · Shawnee, OK
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370149
Location1102 W MacarthurShawnee, OK 74804 · Pottawatomie County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73112 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.46 typical visit price
range $53.00 – $162.61
Typical copayment $20.61 (range $13.25 – $40.65)
Most-billed visit code 99203
Established Patient
$66.48 typical visit price
range $16.68 – $132.40
Typical copayment $16.62 (range $4.17 – $33.10)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 17

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
7 suppliers339 claims339 services$35.19 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
5 suppliers43 claims43 services$77.22 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
4 suppliers50 claims124 services$30.17 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
4 suppliers301 claims1,464 services$16.92 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
7 suppliers132 claims697 services$12.94 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
9 suppliers328 claims328 services$50.96 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STACIE L PIERCE-DUTCH P.A.-C
Physician Assistant (Medical)
3433 NW 56TH ST STE 710
OKLAHOMA CITY, OK 73112
Oklahoma County (405) 951-2141
VIRAL K DOSHI M.D
Internal Medicine (Sleep Medicine)
3433 NW 56TH ST STE 710
OKLAHOMA CITY, OK 73112
Oklahoma County (405) 951-2141

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diem Nguyenho's NPI number?

The NPI number for Diem Nguyenho is 1346864378. It was assigned to this individual provider in the NPPES registry on June 5, 2020.

Where is Diem Nguyenho located?

Diem Nguyenho practices at 3433 NW 56th St Ste 710, Oklahoma City, OK 73112. The listed phone number is (405) 951-2141.

What is Diem Nguyenho's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Diem Nguyenho enrolled in Medicare?

Yes. Diem Nguyenho is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Diem Nguyenho accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Medica, Mending Health and Oscar Insurance Company list Diem Nguyenho as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Diem Nguyenho affiliated with any hospitals?

According to CMS data, Diem Nguyenho is affiliated with Ssm Health St Anthony Hospital - Oklahoma City and Ssm Health St Anthony Hospital - Shawnee.

When was this NPI record last updated?

The NPPES record for Diem Nguyenho was last updated on July 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.