KELSEY JUNE DIEMER DO
NPI 1770043150
Internal Medicine - Sports Medicine in Estero, FL

Q: What is Kelsey Diemer's NPI number?

The NPI number for Kelsey Diemer is 1770043150. It was assigned to this individual provider in the NPPES registry on March 22, 2019. The provider is also known as Kelsey Jacobson.

Q: What is Kelsey Diemer's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sports Medicine, with taxonomy code 207RS0010X.

Q: When was this NPI record last updated?

The NPPES record for Kelsey Diemer was last updated on November 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 March 22, 2019PECOS EnrolledAccepts Medicare Assignment

23450 VIA COCONUT PT, ESTERO, FL 34135(239) 343-9696(239) 343-4198 Get Directions Write a Review

NPPES record last updated: November 6, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 6, 2025, Nov 8, 2024, Jul 10, 2023 and 1 more (4 updates tracked since 2019).

On this page

About Kelsey June Diemer Do NPPES

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

KELSEY JUNE DIEMER DO (NPI 1770043150) is an individual sports medicine provider in Estero, Florida, licensed in Florida (OS20212) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Lee Memorial Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1770043150

Entity TypeIndividualFemale

Primary Taxonomy207RS0010X

Provider Legal NameKELSEY JUNE DIEMERCredential: DO

Location Address23450 VIA COCONUT PTEstero, FL 34135-1877

Mailing AddressPo Box 2147Fort Myers, FL 33902-2147 · (239) 343-9696 · Fax (239) 343-4198

Phone(239) 343-9696

Fax(239) 343-4198

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateMarch 22, 2019

Last NPPES UpdateNovember 6, 20254 updates tracked since enumeration

NPPES CertifiedNovember 6, 2025

✔ NPI 1770043150 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sports MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RS0010X

License✔ Licensed in FL · OS20212

Definition

An internist trained to be responsible for continuous care in the field of sports medicine, not only for the enhancement of health and fitness, but also for the prevention of injury and illness. A sports medicine physician must have knowledge and experience in the promotion of wellness and the prevention of injury. Knowledge about special areas of medicine such as exercise physiology, biomechanics, nutrition, psychology, physical rehabilitation, epidemiology, physical evaluation, injuries (treatment and prevention and referral practice) and the role of exercise in promoting a healthy lifestyle are essential to the practice of sports medicine. The sports medicine physician requires special education to provide the knowledge to improve the healthcare of the individual.

23450 VIA COCONUT PT, Estero, FL 34135

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Other Names 1

Former Name (1)Kelsey Jacobson

Secondary Practice Locations 2

Location 18960 Colonial Center Dr Ste 206Fort Myers, FL 33905-7810 · Phone (239) 343-9696 · Fax (239) 343-4198

Location 224040 S Tamiami Trl Ste 202Bonita Springs, FL 34134-7040 · Phone (239) 624-7100

Other Identifiers 1

Medicaid119160500FL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Superior HealthPlan, Ambetter Health, Ambetter of Alabama and more.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

Kelsey June Diemer Do 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 ID941537930

PECOS Enrollment IDI20231012001114

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 13

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

258 services52 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.

186 services161 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

177 services177 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

104 services104 patients

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.

97 services87 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

56 services52 patients

Injection, methylprednisolone acetate, 40 mg J1030

Methylprednisolone acetate is a medication given through an injection. It's a type of corticosteroid, which reduces inflammation and immune responses. It can be used to treat various conditions like arthritis, allergies, and skin diseases. This dose is 40 mg.

45 services36 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

44 services43 patients

Aspiration and/or injection of fluid large joint using ultrasound guidance 20611

This procedure involves using ultrasound technology to accurately locate a large joint, usually the knee or shoulder. A needle is then inserted to either extract fluid (aspiration) or inject medication. The ultrasound helps ensure precision and safety.

42 services31 patients

Injection into tendon or ligament 20550

An injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.

24 services20 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.

22 services19 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

22 services22 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

14 services13 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Lee Memorial Hospital

Acute Care Hospitals · Fort Myers, FL

5/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number100012

Location2776 Cleveland AveFort Myers, FL 33901 · Lee County

Emergency services Birthing friendly

Gulf Coast Medical Center Lee Health

Acute Care Hospitals · Fort Myers, FL

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number100220

Location13681 Doctors WayFort Myers, FL 33912 · Lee County

Emergency services

Cape Coral Hospital

Acute Care Hospitals · Cape Coral, FL

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number100244

Location636 Del Prado BlvdCape Coral, FL 33990 · Lee County

Emergency services Birthing friendly

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.

JEREMY A DZEN DO

Internal Medicine