DR. NATHAN DANIEL LILES (M.D.) – Anatomic Pathology & Clinical Pathology Physician, NPI 1033343611

DR. NATHAN DANIEL LILES (M.D.) is a healthcare provider. based in Houston, Texas. specializing in PATHOLOGY. They hold the professional credentials M.D.. They hold a License No. N2174 (TX). The NPI Number for DR. NATHAN DANIEL LILES (M.D.) is 1033343611

Main info

Male
21 Years Of Experience
Accepts Medicare Assignment
Name
DR. NATHAN DANIEL LILES (M.D.)
NPI
1033343611
Phone
(409) 299-3214
Address
PO BOX 421479
Enumeration Date
11 May 2009
Last Update Date
6 March 2026

Doctor Profile

Medical School Name
UNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Secondary Phone
4098927171
Graduation Year
2005 (21 years ago)
PAC ID
4587856182
Group Practice PAC ID
1850392150
Professional Enrollment ID
I20101013001131
Address ID
TX777021809BE2830XSTXX300
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience58
Completeness85
Years active:17State licenses:1Digital endpointsOther names

1,395 PATHOLOGY in TX

Provider Addresses for DR. NATHAN DANIEL LILES (M.D.)

  • PO BOX 421479

    HOUSTON, TX 772421479

    Phone: (409) 299-3214

    Fax: (409) 299-3251

    Type: Mailing

  • 2830 CALDER ST

    BEAUMONT, TX 777021809

    Phone: (409) 892-7171

    Fax: (512) 597-2713

    Type: Location

  • CHRISTUS Mother Frances Hospital - Tyler, 800, East Dawson Street, Tyler, Smith County, Texas, 75701, United States

    PATHOLOGY

    TYLER, TX 75701

    Phone: (903) 606-7494

    Fax: (903) 606-2729

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 3 Open Payments records for all available years, with a total value of $47.

Total Amount is formed as General ($47) + Research ($0) + Ownership ($0) = $47.

Last reported payment date: 2024-04-18 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($20).

Total Amount

$47

General + Research + Ownership

Payments

3

Total payment records

General Amount

$47

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-04-18

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2010-10-13

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20101013001131IPathologyTXTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
88305Pathology examination of tissue using a microscope, intermediate complexity393239$0
88341Special stained specimen slides to examine tissue, each additional procedure32262$0
88342Special stained specimen slides to examine tissue, initial procedure11489$0
88304Pathology examination of tissue using a microscope, moderately low complexity110101$0
88307Pathology examination of tissue using a microscope, moderately high complexity10171$0
View full utilization report →

Insurance plans in this area (ZIP 77242)

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Provider's Procedures

DR. NATHAN DANIEL LILES (M.D.) performs procedures in PATHOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PATHOLOGYTX88304Pathology examination of tissue using a microscope, moderately low complexity1313
PATHOLOGYTX88312Special stained specimen slides to identify organisms including interpretation and report163137

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 1850392150View full group profile
NameSpecialtyState
-CA
P A T H O L O G YTX
P A T H O L O G YTX

Reviews

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Frequently asked questions

Is DR. NATHAN DANIEL LILES (M.D.) listed with a National Provider Identifier?
Yes — DR. NATHAN DANIEL LILES (M.D.) has NPI 1033343611 on file in the registry.
Is DR. NATHAN DANIEL LILES (M.D.) shown as active in public data?
Registry records indicate DR. NATHAN DANIEL LILES (M.D.) maintains an active NPI.
What clinical focus is listed for DR. NATHAN DANIEL LILES (M.D.)?
At a glance, DR. NATHAN DANIEL LILES (M.D.) is tied to Anatomic Pathology & Clinical Pathology Physician. Clinical services aligned with this taxonomy classification.
Is DR. NATHAN DANIEL LILES (M.D.) located near Houston?
DR. NATHAN DANIEL LILES (M.D.) currently maps to Houston, Texas in this extract.
Can I trust this NPI listing for DR. NATHAN DANIEL LILES (M.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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