Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

HILARY SOMERSET SILLIK M.D.
NPI 1487897856
Pathology - Anatomic Pathology & Clinical Pathology in Highlands Ranch, CO

Q: What is Hilary Sillik's NPI number?

The NPI number for Hilary Sillik is 1487897856. It was assigned to this individual provider in the NPPES registry on April 14, 2009.

Q: What is Hilary Sillik's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Q: When was this NPI record last updated?

The NPPES record for Hilary Sillik was last updated on August 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 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.

Active since April 14, 2009PECOS Enrolled

91.11/100

CMS Quality Rating

206 W COUNTY LINE RD STE 340, HIGHLANDS RANCH, CO 80129(303) 888-6426(303) 302-1659 Get Directions Write a Review

NPPES record last updated: August 20, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 20, 2026, Mar 18, 2025, Jan 29, 2021 and 1 more (4 updates tracked since 2016).

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About Hilary Somerset Sillik M.d. NPPES

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

HILARY SOMERSET SILLIK M.D. (NPI 1487897856) is an individual anatomic pathology & clinical pathology provider in Highlands Ranch, Colorado, licensed in Colorado (DR.0051887) and active in the NPI registry since April 2009. She is enrolled in Medicare PECOS, maintains a secondary practice location in Highlands Ranch, and is a graduate of University Of Colorado School Of Medicine, Denver (2009).

NPPES Registry Identity

NPI1487897856

Entity TypeIndividualFemale

Primary Taxonomy207ZP0102X

Provider Legal NameHILARY SOMERSET SILLIKCredential: M.D.

Location Address206 W COUNTY LINE RD STE 340Highlands Ranch, CO 80129-2321

Mailing Address777 Bannock StDenver, CO 80204-4597 · (303) 602-5200 · Fax (303) 602-5261

Phone(303) 888-6426

Fax(303) 302-1659

Sole ProprietorNo

Medical School CMSUniversity Of Colorado School Of Medicine, DenverGraduated 2009

Enumeration DateApril 14, 2009

Last NPPES UpdateAugust 20, 20264 updates tracked since enumeration

NPPES CertifiedAugust 20, 2026

✔ NPI 1487897856 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0102X

License✔ Licensed in CO · DR.0051887

Definition

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Also ListedPathology · DermatopathologyTaxonomy 207ZD0900X · License DR.0051887 (CO)

206 W COUNTY LINE RD STE 340, Highlands Ranch, CO 80129

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Secondary Practice Location 1

Location 1206 W County Line Rd Ste 245Highlands Ranch, CO 80129-2320 · Phone (303) 558-7090 · Fax (303) 997-2115

Other Identifiers 1

Medicaid80081347CO

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

Hilary Somerset Sillik M.d. 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 ID9335360270

PECOS Enrollment IDI20141020000032

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 8

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

100 services78 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

31 services19 patients

Pathology examination of tissue using a microscope, moderately high complexity 88307

A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.

22 services11 patients

Protein measurement, serum 84165

A serum protein measurement is a blood test that determines the levels of proteins in your blood. It is used to evaluate your overall health, and diagnose nutritional problems, kidney disease, liver disease, or immune disorders.

21 services20 patients

Immunologic analysis technique on serum (immunofixation) 86334

Immunofixation is a lab test that helps identify proteins called immunoglobulins in your blood serum. These proteins are part of your immune system. Changes in their levels can indicate certain diseases. The test is simple and only requires a blood sample.

21 services20 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

15 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80129 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

$132.55 typical visit price

range $58.06 – $174.82

Typical copayment $33.13 (range $14.51 – $43.70)

Most-billed visit code 99204

Established Patient

$102.03 typical visit price

range $18.88 – $142.79

Typical copayment $25.50 (range $4.72 – $35.69)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.11/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

90.23

Promoting Interoperability

Improvement Activities

Cost

73.49

Other Providers at the Same Location NPPES 8

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

MRS. JANICE ELIZABETH JOHNSEN PA

Physician Assistant