SETH ALLEN MATHERN M.D.
NPI 1972998110
Hospitalist in Denver, CO

Q: What is Seth Mathern's NPI number?

The NPI number for Seth Mathern is 1972998110. It was assigned to this individual provider in the NPPES registry on April 4, 2015.

Q: What is Seth Mathern's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Seth Mathern was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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 04, 2015PECOS EnrolledAccepts Medicare Assignment

77.17/100

CMS Quality Rating

2525 S DOWNING ST, DENVER, CO 80210(303) 673-7151 Get Directions Write a Review

NPPES record last updated: September 4, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 4, 2025, Jan 18, 2022, Jul 31, 2018 (3 updates tracked since 2018).

On this page

About Seth Allen Mathern M.d. NPPES

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

SETH ALLEN MATHERN M.D. (NPI 1972998110) is an individual hospitalist provider in Denver, Colorado, licensed in Colorado (DR.0060603) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Columbia University College Of Physicians And Surgeons (2015).

NPPES Registry Identity

NPI1972998110

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameSETH ALLEN MATHERNCredential: M.D.

Location Address2525 S DOWNING STDenver, CO 80210-5817

Mailing AddressPo Box 911057Denver, CO 80291-1057 · (888) 269-7001 · Fax (303) 764-6640

Phone(303) 673-7151

Sole ProprietorNo

Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2015

Enumeration DateApril 4, 2015

Last NPPES UpdateSeptember 4, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 4, 2025

✔ NPI 1972998110 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CO · DR.0060603

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedFamily MedicineTaxonomy 207Q00000X · License DR.0060603 (CO)

2525 S DOWNING ST, Denver, CO 80210

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Secondary Practice Locations 2

Location 114300 Orchard PkwyWestminster, CO 80023-9206 · Phone (720) 627-3761 · Fax (720) 627-3758

Location 213001 E 17th PlAurora, CO 80045-2570 · Phone (720) 848-9096

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Molina Healthcare.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

Seth Allen Mathern 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 ID2365755394

PECOS Enrollment IDI20180814001018

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 2

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

134 services130 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

82 services78 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80210 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.

77.17/100

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

Scored as part of a group practice

Quality

80.27

Promoting Interoperability

Improvement Activities

Cost

59.47

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

2 suppliers14 claims14 services$209.77 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

ANDREA LACINA

General Acute Care Hospital

2525 S DOWNING ST
DENVER, CO 80210

Denver County (303) 778-5811

SARA A. SCHAECHER NP

Nurse Practitioner (Adult Health)

2525 S DOWNING ST, INTENSIVE CARE UNIT
DENVER, CO 80210

Denver County (303) 778-2571

MOUNTAIN STATES PATHOLOGY PC

Pathology (Anatomic Pathology & Clinical Pathology)

2525 S DOWNING ST
DENVER, CO 80210

Denver County (719) 776-5816

MRS. ANGELA KAY MALINOSKI

Registered Nurse (General Practice)

2525 S DOWNING ST
DENVER, CO 80210

Denver County (303) 765-6947

PAYAM KHALIGHI DO

Hospitalist

2525 S DOWNING ST
DENVER, CO 80210

Denver County (303) 715-7184

DAVID M CLAMPITT MD

Family Medicine

2525 S DOWNING ST
DENVER, CO 80210

Denver County (303) 715-7184

PORTERCARE ADVENTIST HEALTH SYSTEM

Registered Nurse (Neonatal Intensive Care)

2525 S DOWNING ST
DENVER, CO 80210

Denver County (303) 778-1955

OBSTETRIX MEDICAL GROUP OF COLORADO, P.C.

Pediatrics (Pediatric Cardiology)

2525 S DOWNING ST
DENVER, CO 80210

Denver County (303) 778-1955

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Seth Mathern's NPI number?

The NPI number for Seth Mathern is 1972998110. It was assigned to this individual provider in the NPPES registry on April 4, 2015.

Where is Seth Mathern located?

Seth Mathern practices at 2525 S Downing St, Denver, CO 80210. The listed phone number is (303) 673-7151.

What is Seth Mathern's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Seth Mathern enrolled in Medicare?

Yes. Seth Mathern is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Seth Mathern accept?

Health plans from Molina Healthcare list Seth Mathern as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Seth Mathern was last updated on September 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.