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DR. GARY M. KAMMER M.D.
NPI 1083685952
Internal Medicine - Rheumatology in Willoughby, OH

Active since January 30, 2006PECOS Enrolled
5105 SOM CENTER RD # 105, WILLOUGHBY, OH 44094(440) 953-8700(440) 953-8796 Get Directions Write a Review

NPPES record last updated: February 26, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 26, 2021, Sep 11, 2019, Aug 25, 2017 (3 updates tracked since 2017).

About Dr. Gary M. Kammer M.d. NPPES

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

DR. GARY M. KAMMER M.D. (NPI 1083685952) is an individual rheumatology provider in Willoughby, Ohio, licensed in Ohio (35 . 032567) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083685952
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDR. GARY M. KAMMERCredential: M.D.
Location Address5105 SOM CENTER RD # 105Willoughby, OH 44094-4203
Mailing Address7590 Auburn Rd Ste 14Concord Twp, OH 44077-9176 · (409) 541-8994 · Fax (409) 541-1845
Phone(440) 953-8700
Fax(440) 953-8796
Sole ProprietorYes
Enumeration DateJanuary 30, 2006
Last NPPES UpdateFebruary 26, 20213 updates tracked since enumeration
NPPES CertifiedFebruary 26, 2021
✔ NPI 1083685952 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in OH · 35 . 032567
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.
5105 SOM CENTER RD # 105, Willoughby, OH 44094
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Other Identifiers 2

Medicaid0399251OH
OtherH480820OH · Medicare

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Gary M. Kammer 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.

Medicare Billing Reassignment

Medicare enrollment records show Gary Kammer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lake Hospital System
0.4 mi
Obstetrics & Gynecology
36000 EUCLID AVE
Willoughby, OH 44094
  • Reassigned Medicare billing, Ohio enrollment
  • 285 clinicians in this Medicare group
NPI 1346202512 (440) 354-1618

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.
195 services93 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
109 services65 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
23 services20 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.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 44094 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
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

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 Gary Kammer's NPI number?

The NPI number for Gary Kammer is 1083685952. It was assigned to this individual provider in the NPPES registry on January 30, 2006.

Where is Gary Kammer located?

Gary Kammer practices at 5105 Som Center Rd # 105, Willoughby, OH 44094. The listed phone number is (440) 953-8700.

What is Gary Kammer's specialty?

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

Is Gary Kammer enrolled in Medicare?

Yes. Gary Kammer is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gary Kammer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gary Kammer reassigns Medicare benefits to Lake Hospital System (Willoughby, OH). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gary Kammer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gary Kammer was last updated on February 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.