What is Helen Dinh's NPI number?

Helen Dinh's National Provider Identifier (NPI) is 1255055422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Helen Dinh's specialty?

Helen Dinh is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Helen Dinh located?

Helen Dinh's practice location on file with NPPES is 910 Campisi Way Ste 2a, Campbell, CA 95008-2351.

What is Helen Dinh's phone number?

The practice phone number listed in the NPPES registry for Helen Dinh is (408) 827-4274.

Does Helen Dinh accept Medicare?

Helen Dinh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Helen Dinh's NPI active?

Yes — Helen Dinh's NPI (1255055422) is active in the NPPES registry as of the last update on 2024-02-15.

IndividualActiveAccepts Medicare

Helen Dinh

NPI 1255055422 · Physician Assistant · Campbell, CA

Helen Dinh is a Physician Assistant provider in Campbell, CA (NPI 1255055422).

Provider details

NPI number: 1255055422
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Sex: Female
Sole proprietor: Yes

Practice location

910 Campisi Way Ste 2a

Campbell, CA 95008-2351

Phone: (408) 827-4274

Street-level locationGet directions

More CA providers

Mailing address

910 Campisi Way Ste 2a

Campbell, CA 95008-2351

Specialties & taxonomies

Physician AssistantPrimary363A00000X
Physician Assistants & Advanced Practice Nursing Providers

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(57/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
4 yrs in NPPES registry
Profile completeness25% of score
83% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
479 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	111	$94
Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212	96	$60
Pelvic Exam99459	88	$27
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	79	$131
Insertion of Temporary Bladder Tube51701	29	$46
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Vibegronbrand: Gemtesa	27	11
Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro	22	22
Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim	21	19
Oxycodone Hcl	19	18
Estradiol	19	12
Celecoxib	17	17
Diclofenac Sodium	14	14

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$696 across 26 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2022-09-30
Last updated: 2024-02-15
Certified: 2024-02-15

Frequently asked questions

What is Helen Dinh's NPI number?: Helen Dinh's National Provider Identifier (NPI) is 1255055422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Helen Dinh's specialty?: Helen Dinh is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
Where is Helen Dinh located?: Helen Dinh's practice location on file with NPPES is 910 Campisi Way Ste 2a, Campbell, CA 95008-2351.
What is Helen Dinh's phone number?: The practice phone number listed in the NPPES registry for Helen Dinh is (408) 827-4274.
Does Helen Dinh accept Medicare?: Helen Dinh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Helen Dinh's NPI active?: Yes — Helen Dinh's NPI (1255055422) is active in the NPPES registry as of the last update on 2024-02-15.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	111	$94
Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212	96	$60
Pelvic Exam99459	88	$27
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	79	$131
Insertion of Temporary Bladder Tube51701	29	$46
Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Vibegronbrand: Gemtesa	27	11
Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro	22	22
Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim	21	19
Oxycodone Hcl	19	18
Estradiol	19	12
Celecoxib	17	17
Diclofenac Sodium	14	14

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$696 across 26 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments