JOHN H AHN DO
NPI 1598790701
Internal Medicine - Gastroenterology in Safety Harbor, FL

Active since July 12, 2006PECOS EnrolledAccepts Medicare Assignment
1840 MEASE DRIVE, SUITE 305, SAFETY HARBOR, FL 34695(727) 796-4166(727) 669-5849 Get Directions Write a Review

NPPES record last updated: May 12, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 12, 2021, Mar 22, 2018 (2 updates tracked since 2018).

About John H Ahn Do NPPES

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

JOHN H AHN DO (NPI 1598790701) is an individual gastroenterology provider in Safety Harbor, Florida, licensed in Florida (OS7005) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Mease Dunedin Hospital, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (1988).

NPPES Registry Identity

NPI1598790701
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameJOHN H AHNCredential: DO
Location Address1840 MEASE DRIVE, SUITE 305Safety Harbor, FL 34695
Mailing Address3001 Executive Dr Ste 130Clearwater, FL 33762-5323 · (727) 347-0005 · Fax (727) 541-6558
Fax(727) 669-5849
Sole ProprietorNo
Medical School CMSNew York College Of Osteo Medicine Of New York Institute Of TechnologyGraduated 1988
Enumeration DateJuly 12, 2006
Last NPPES UpdateMay 12, 20212 updates tracked since enumeration
NPPES CertifiedMay 12, 2021
NPI 1598790701 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License Licensed in FL · OS7005
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1840 MEASE DRIVE, Safety Harbor, FL 34695

Other Identifiers 6

Other57158Bcbs
Other4775800Cigna
Other1136014First Health
Other281931Avmed
Medicaid300384100FL
Other5676415Aetna

Accepted 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

John H Ahn 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 ID7618943713
PECOS Enrollment IDI20040909000771
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 11

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.
246 services192 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.
137 services137 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.
113 services99 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
91 services91 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
75 services75 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
54 services54 patients

Hospital Affiliations CMS Care Compare 3

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

Mease Dunedin Hospital

Acute Care Hospitals · Dunedin, FL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100043
Location601 Main StDunedin, FL 34698 · Pinellas County
Emergency services

Hca Florida West Hospital

Acute Care Hospitals · Pensacola, FL
2/5 CMS rating
OwnershipProprietary
CMS Certification Number100231
Location8383 N Davis HwyPensacola, FL 32514 · Escambia County
Emergency services Birthing friendly

Mease Countryside Hospital

Acute Care Hospitals · Safety Harbor, FL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100265
Location3231 Mcmullen Booth RdSafety Harbor, FL 34695 · Pinellas County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 34695 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
$130.04 typical visit price
range $56.00 – $171.84
Typical copayment $32.51 (range $14.00 – $42.96)
Most-billed visit code 99204
Established Patient
$99.16 typical visit price
range $17.57 – $139.16
Typical copayment $24.79 (range $4.39 – $34.79)
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.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Urology
1840 MEASE DRIVE, SUITE 300
SAFETY HARBOR, FL 34695
Nurse Practitioner
1840 MEASE DRIVE, SUITE 305
SAFETY HARBOR, FL 34695
Internal Medicine (Infectious Disease)
1840 MEASE DRIVE, SUITE 319
SAFETY HARBOR, FL 34695
Internal Medicine (Pulmonary Disease)
1840 MEASE DRIVE, SUITE 307
SAFETY HARBOR, FL 34695
Urology
1840 MEASE DRIVE, SUITE 300
SAFETY HARBOR, FL 34695
Pediatrics (Pediatric Gastroenterology)
1840 MEASE DRIVE, SUITE #204
SAFETY HARBOR, FL 34695
Urology
1840 MEASE DRIVE, SUITE 300
SAFETY HARBOR, FL 34695
Surgery
1840 MEASE DRIVE, SUITE 301
SAFETY HARBOR, FL 34695

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 Ahn's NPI number?

The NPI number for John Ahn is 1598790701. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is John Ahn located?

John Ahn practices at 1840 Mease Drive Suite 305, Safety Harbor, FL 34695. The listed phone number is (727) 796-4166.

What is John Ahn's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is John Ahn enrolled in Medicare?

Yes. John Ahn 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 John Ahn accept?

Health plans from Ambetter Health, Ambetter of Alabama, AvMed, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) and 3 other insurers list John Ahn 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.

Is John Ahn affiliated with any hospitals?

According to CMS data, John Ahn is affiliated with Mease Dunedin Hospital, Hca Florida West Hospital and Mease Countryside Hospital.

When was this NPI record last updated?

The NPPES record for John Ahn was last updated on May 12, 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.