ISAAC LILL
NPI 1003558495
Internal Medicine in Waco, TX

Q: What is Isaac Lill's NPI number?

The NPI number for Isaac Lill is 1003558495. It was assigned to this individual provider in the NPPES registry on April 7, 2022.

Q: What is Isaac Lill's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Isaac Lill was last updated on October 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.

Active since April 07, 2022PECOS EnrolledAccepts Medicare Assignment

100 HILLCREST MEDICAL BLVD, WACO, TX 76712(254) 202-2000(254) 202-5651 Get Directions Write a Review

NPPES record last updated: October 1, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 2, 2025, Apr 7, 2022 (2 updates tracked since 2022).

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About Isaac Lill NPPES

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

ISAAC LILL (NPI 1003558495) is an individual internal medicine provider in Waco, Texas, licensed in Texas (V6348) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, is affiliated with Baylor Scott & White Medical Center - Temple, and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1003558495

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameISAAC LILL

Location Address100 HILLCREST MEDICAL BLVDWaco, TX 76712-8897

Mailing AddressPo Box 848491Dallas, TX 75284-8491 · (254) 202-9330 · Fax (254) 202-9349

Phone(254) 202-2000

Fax(254) 202-5651

Sole ProprietorNo

Medical School CMSUniversity Of Texas Southwestern Medical School At DallasGraduated 2022

Enumeration DateApril 7, 2022

Last NPPES UpdateOctober 1, 20252 updates tracked since enumeration

NPPES CertifiedOctober 1, 2025

✔ NPI 1003558495 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in TX · V6348

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

100 HILLCREST MEDICAL BLVD, Waco, TX 76712

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Secondary Practice Location 1

Location 11 Baylor PlzHouston, TX 77030-3498 · Phone (713) 798-4951

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.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

Isaac Lill 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 ID42714891

PECOS Enrollment IDI20250916002904

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.

Hospital Affiliations CMS Care Compare 2

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

Baylor Scott & White Medical Center - Temple

Acute Care Hospitals · Temple, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450054

Location2401 S 31st StTemple, TX 76508 · Bell County

Emergency services Birthing friendly

Baylor Scott & White Medical Center Hillcrest

Acute Care Hospitals · Waco, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450101

Location100 Hillcrest Medical BlvdWaco, TX 76712 · Mc Lennan County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 76712 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

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

MRS. LORI ELAINE HUTSON RNC NNP

Nurse Practitioner (Neonatal)