What is Halyna Ivashchuk's NPI number?

Halyna Ivashchuk's National Provider Identifier (NPI) is 1912361585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Halyna Ivashchuk's specialty?

Halyna Ivashchuk is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).

Where is Halyna Ivashchuk located?

Halyna Ivashchuk's practice location on file with NPPES is 13300 Hargrave Rd Ste 500, Houston, TX 77070-4374.

What is Halyna Ivashchuk's phone number?

The practice phone number listed in the NPPES registry for Halyna Ivashchuk is (281) 357-0111.

Does Halyna Ivashchuk accept Medicare?

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

Is Halyna Ivashchuk's NPI active?

Yes — Halyna Ivashchuk's NPI (1912361585) is active in the NPPES registry as of the last update on 2026-03-18.

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Halyna Ivashchuk, M.D.

NPI 1912361585 · Pulmonary Disease Physician · Houston, TX

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

Halyna Ivashchuk, M.D. is a Pulmonary Disease Physician provider in Houston, TX (NPI 1912361585).

Provider details

NPI number: 1912361585
Entity type: Individual
Primary specialty: Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: S2350 (TX)

Specialties & taxonomies

Pulmonary Disease PhysicianPrimary207RP1001XLicense S2350 (TX)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 66182 (MN)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(63/100 index)

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

Registry tenure25% of score
10 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
7 documented practice locations
Medicare service volume (vs. specialty peers)25% of score
12 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 .

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)
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'SG2211	12	$16

Typical Medicare-allowed amounts for these services range $16–$16 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

Transparency — industry payments

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

$142 across 5 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.

Practice location

13300 Hargrave Rd Ste 500

Houston, TX 77070-4374

Phone: (281) 357-0111

Street-level locationGet directions

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Mailing address