Dr. John Isaak, MD
- Medicare services, 2024
- 80
- Medicare patients, 2024
- 66
- Part D claims, 2024
- 822
- Hospital affiliations
- 2
- Industry payments
- $374
- Practice address
- 3231 N McMullen Booth Rd, Clearwater, FL 33761
- Practice phone
- Call (727) 725-6111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mease Countryside Hospital
Clearwater, Florida
Find Dr. Isaak's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Isaak is an internist in Clearwater, Florida
Dr. Isaak practices at Mease Countryside Hospital in Clearwater, Florida.
Dr. Isaak's NPI, 1265725519, was assigned on May 19, 2011. Dr. Isaak graduated from Ain Shams University Faculty of Medicine in 2007. Dr. Isaak holds Florida license ME119308.
- NPI
- 1265725519NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436398971
- NPI enumeration date
- May 19, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (727) 725-6111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Isaak practices at Mease Countryside Hospital in Clearwater, Florida
Dr. Isaak's primary practice is Mease Countryside Hospital, at 3231 N McMullen Booth Rd, Clearwater, FL 33761 in Pinellas County. The practice phone is (727) 725-6111.
- Mease Countryside Hospital3231 N McMullen Booth Rd, Clearwater, FL 33761 · Pinellas CountyPhone(727) 725-6111
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Isaak is affiliated with 5 sites of care and 1 medical group
Dr. Isaak's primary practice is Mease Countryside Hospital in Clearwater, Florida. Dr. Isaak is also affiliated with Morton Plant Hospital. The medical group on file is BayCare Medical Group. Dmand AI also links Dr. Isaak to 1 more hospital, 1 physician office and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Isaak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Isaak practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mease Countryside Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Isaak is one of 9,009 internists in Florida
Internal medicine is Dr. Isaak's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Isaak is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Isaak's licenses on file in 2 states: Florida and New Jersey.
Specialties and state licenses
- Internal medicine, FloridaPrimary
- New Jersey license
Clinical focus
Dmand AI lists acute stomach ulcer, bile duct problems, circulatory problems in extremities, congestive heart failure, electrolyte disorders, gastrointestinal bleeding, gastrointestinal inflammation and heart attack among the conditions Dr. Isaak treats.
Internists near Dr. Isaak
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Isaak billed Medicare for 80 services in 2024
CMS data shows 80 Medicare services from Dr. Isaak across 4 procedure codes in 2024, for 66 Medicare patients. Medicare paid $10,108 for them. Every service was in an office.
Dr. Isaak's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3422024: 6481%
- Other services
- 2023: 02024: 16
Dr. Isaak compared with the Florida median for internists, 2024
- Dr. Isaak
- Florida median
- Medicare services
- 80vs 55586% below
- Medicare patients
- 66vs 21569% below
- Part D claims
- 425vs 4669% below
Medians across 8,488 internists in Florida with Dmand AI profiles that report each measure.
Dr. Isaak's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Isaak and other internists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Isaak treated 66 Medicare patients in 2024, average age 74
CMS counts 66 Medicare patients who saw Dr. Isaak in 2024. The largest group is 65 to 74, with 35 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.38, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Isaak's median patient age at 60, with 47% women.
Dr. Isaak's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Isaak's Medicare patients by sex, 2024
- Women3350%
- Men3350%
Chronic conditions among Dr. Isaak's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Ischemic heart disease41%
- Anxiety32%
- Diabetes29%
- Chronic kidney disease26%
- Heart failure24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Isaak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women47%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Isaak wrote 822 Medicare Part D claims in 2024
In 2024, Dr. Isaak wrote 822 Medicare Part D claims for 81 patients. 80% of them were for generic drugs. CMS names the drug for 425 of them, across 24 drugs with 11 or more claims each, at $20,777 in total drug cost. In 2023, CMS named 37 claims across 3 drugs.
Dr. Isaak's Part D claims by kind of drug, 2024
- Generic661 claims80%
- Brand-name and other161 claims20%
Dr. Isaak's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Isaak's Part D claims, 2024
- Antibiotics4%36 of 822 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 372024: 4251049%
Drugs named by CMS: 24 in 2024, 3 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. John Isaak offers telehealth to Medicare patients
Dr. Isaak accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Isaak as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Isaak received $374 in industry payments from 2016 to 2024
CMS Open Payments shows 10 general payments to Dr. Isaak from 4 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $218.
General payments to Dr. Isaak by program year, 2016 to 2024
Companies that paid Dr. Isaak the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Isaak has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Isaak, most recently Service Star Award in 2016.
Awards and honors for Dr. Isaak
- 2016
- Service Star Award
- 2013
- Chief Internal Medicine Resident
Source: Dmand AI Professional Profile Data
Dr. John Isaak graduated from Ain Shams University Faculty of Medicine
Dr. Isaak graduated from Ain Shams University Faculty of Medicine in 2007. Dr. Isaak is a member of ACP and AMA.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John Isaak accepts plans from 12 insurance carriers
Dr. Isaak is in network with 12 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Elevance
- Aetna
- Excellus BlueCross BlueShield
- Blue Cross Blue Shield of Michigan
- Cigna
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- +4 more carriersWith a free account
Plan types Dr. Isaak accepts, by number of carriers
- Medicare9
- PPO8
- HMO7
- POS6
- EPO3
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. John Isaak's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Isaak
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Isaak's NPI number?
Dr. John Isaak's NPI number is 1265725519. It was assigned on May 19, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. John Isaak?
Dr. John Isaak is an internist in Clearwater, Florida. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Isaak practice?
Dr. Isaak practices at 3231 N McMullen Booth Rd, Clearwater, FL 33761. Dr. Isaak's primary practice is Mease Countryside Hospital in Clearwater, Florida. Dmand AI also links Dr. Isaak to 1 hospital, 1 physician office and 1 group practice or clinic.
What is Dr. John Isaak's office phone number?
The practice phone on file for Dr. Isaak is (727) 725-6111.
What is Dr. John Isaak's medical license number?
Dr. Isaak holds Florida license ME119308, one of the licenses on file in 2 states.
Which states has Dr. John Isaak been licensed in?
Dmand AI has state licenses on file for Dr. Isaak in Florida (2014 to 2026) and New Jersey (2024 to 2025).
Which hospitals is Dr. John Isaak affiliated with?
Dr. Isaak is affiliated with Morton Plant Hospital. Dmand AI links Dr. Isaak to 1 more hospital.
What medical group is Dr. John Isaak part of?
Dr. Isaak is linked to BayCare Medical Group.
Does Dr. John Isaak accept Medicare?
Yes. CMS data shows Dr. Isaak billed Medicare for 80 services in 2024, and Dr. Isaak accepts Medicare assignment.
Does Dr. John Isaak offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Isaak as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. John Isaak see?
CMS counts 66 Medicare patients who saw Dr. Isaak in 2024, with an average age of 74.
Is Dr. John Isaak board certified?
Yes. Dr. Isaak is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. John Isaak bill to Medicare?
In 2024, Dr. Isaak's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, new patient (99205).
Where did Dr. John Isaak go to medical school?
Dr. Isaak graduated from Ain Shams University Faculty of Medicine in 2007.
What drugs does Dr. John Isaak prescribe most?
In 2024 Medicare Part D data, Dr. Isaak's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Losartan Potassium.
Has Dr. John Isaak received payments from drug or device companies?
CMS Open Payments shows $374 in general payments to Dr. Isaak from 4 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. John Isaak been practicing?
Dr. Isaak graduated from medical school in 2007, 19 years ago.
What insurance does Dr. John Isaak accept?
Dr. Isaak is in network with 12 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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