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MR. JOHN HOWARD ACKER M.D.
NPI 1497756241
Internal Medicine - Cardiovascular Disease in Knoxville, TN

Active since August 02, 2005PECOS Enrolled
95.69/100
CMS Quality Rating
1940 ALCOA HWY, SUITE E-310, KNOXVILLE, TN 37920(865) 544-2800(865) 544-6812 Get Directions Write a Review

NPPES record last updated: October 27, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mr. John Howard Acker M.d. NPPES

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

MR. JOHN HOWARD ACKER M.D. (NPI 1497756241) is an individual cardiovascular disease provider in Knoxville, Tennessee, licensed in Tennessee (12541) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497756241
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameMR. JOHN HOWARD ACKERCredential: M.D.
Location Address1940 ALCOA HWY, SUITE E-310Knoxville, TN 37920-2244
Mailing Address1940 Alcoa Hwy, Suite E-310Knoxville, TN 37920-2244 · (865) 544-2800 · Fax (865) 544-6812
Phone(865) 544-2800
Fax(865) 544-6812
Sole ProprietorNo
Enumeration DateAugust 2, 2005
Last NPPES UpdateOctober 27, 2016
✔ NPI 1497756241 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in TN · 12541
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
1940 ALCOA HWY, Knoxville, TN 37920
Open in Google Maps ↗

Other Identifiers 1

Medicare UPINA96771TN

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. John Howard Acker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37920 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
Most-billed visit code 99213
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.

95.69/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality85.28
Promoting Interoperability100
Improvement Activities40

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. PATRICIA M HUDDLESTON NP
Nurse Practitioner (Family)
1940 ALCOA HWY, STE 180
KNOXVILLE, TN 37920
Knox County (865) 305-6955
DR. MONA ANNE DASGUPTA DO
Student in an Organized Health Care Education/Training Program
1940 ALCOA HWY
KNOXVILLE, TN 37920
Knox County (865) 524-7471
KNOXVILLE OMNICARE PLLC
Family Medicine
1940 ALCOA HWY, E40
KNOXVILLE, TN 37920
Knox County (865) 588-1605
RAYMOND A DIETER III MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1940 ALCOA HWY, SUITE E310
KNOXVILLE, TN 37920
Knox County (865) 305-6955
ANNA H MOORE APRN, BC
Nurse Practitioner (Family)
1940 ALCOA HWY, SUITE E310
KNOXVILLE, TN 37920
Knox County (865) 544-2800
DR. MICHAEL MORGAN MCNALLY
Surgery (Vascular Surgery)
1940 ALCOA HWY, E120
KNOXVILLE, TN 37920
Knox County (865) 305-8040
UHS CARDIOLOGY GROUP, LLC
Internal Medicine (Cardiovascular Disease)
1940 ALCOA HWY, STE 310
KNOXVILLE, TN 37920
Knox County (865) 544-2800
MS. LISA A DUGGER NP
Nurse Practitioner (Family)
1940 ALCOA HWY, SUITE E-310
KNOXVILLE, TN 37920
Knox County (865) 544-2800

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 John Acker's NPI number?

The NPI number for John Acker is 1497756241. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Where is John Acker located?

John Acker practices at 1940 Alcoa Hwy Suite E-310, Knoxville, TN 37920. The listed phone number is (865) 544-2800.

What is John Acker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is John Acker enrolled in Medicare?

Yes. John Acker is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Acker was last updated on October 27, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.