DR. JOANN L ZELL M.D.
NPI 1760415418
Internal Medicine - Rheumatology in Denver, CO

Q: What is Joann Zell's NPI number?

The NPI number for Joann Zell is 1760415418. It was assigned to this individual provider in the NPPES registry on July 8, 2006. The provider is also known as Dr. Joann L. Gillis M.D..

Q: What is Joann Zell's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Joann Zell was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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 July 08, 2006PECOS EnrolledAccepts Medicare Assignment

97.58/100

CMS Quality Rating

1400 JACKSON ST, DENVER, CO 80206(303) 388-4461(303) 270-2174 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 21, 2022, Mar 17, 2018, Jun 26, 2017 (3 updates tracked since 2017).

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About Dr. Joann L Zell M.d. NPPES

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

DR. JOANN L ZELL M.D. (NPI 1760415418) is an individual rheumatology provider in Denver, Colorado, licensed in Colorado (45196) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Northwestern University Feinberg Medical School (1999).

NPPES Registry Identity

NPI1760415418

Entity TypeIndividualFemale

Primary Taxonomy207RR0500X

Provider Legal NameDR. JOANN L ZELLCredential: M.D.

Location Address1400 JACKSON STDenver, CO 80206-2761

Mailing Address1400 Jackson StDenver, CO 80206-2761 · (303) 388-4461 · Fax (303) 270-2174

Phone(303) 388-4461

Fax(303) 270-2174

Sole ProprietorNo

Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 1999

Enumeration DateJuly 8, 2006

Last NPPES UpdateJuly 21, 20223 updates tracked since enumeration

✔ NPI 1760415418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in CO · 45196

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

Also ListedInternal MedicineTaxonomy 207R00000X · License 45196 (CO)

1400 JACKSON ST, Denver, CO 80206

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Other Names 1

Other Name (5)Dr. Joann L. Gillis M.d.

Secondary Practice Locations 2

Location 1777 Bannock StDenver, CO 80204-4507 · Phone (303) 436-6000

Location 212605 E 16th AveAurora, CO 80045-2545 · Phone (720) 848-0000

Other Identifiers 1

Medicaid57775834CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, UnitedHealthcare.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

Dr. Joann L Zell 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 ID5496759334

PECOS Enrollment IDI20070214000391

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 3

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

107 services70 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

30 services24 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80206 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.

97.58/100

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

Scored through an Alternative Payment Model

Quality

86.53

Promoting Interoperability

100

Improvement Activities

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.

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