JOHANNES KARL MARTENSSON M.D.
NPI 1417954298
Internal Medicine - Gastroenterology in Inverness, FL

Q: What is Johannes Martensson's NPI number?

The NPI number for Johannes Martensson is 1417954298. It was assigned to this individual provider in the NPPES registry on July 7, 2005.

Q: What is Johannes Martensson's specialty?

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

Active since July 07, 2005PECOS EnrolledAccepts Medicare Assignment

3653 E FOREST DR, INVERNESS, FL 34453(352) 344-8080(352) 344-0631 Get Directions Write a Review

NPPES record last updated: September 5, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Johannes Karl Martensson M.d. NPPES

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

JOHANNES KARL MARTENSSON M.D. (NPI 1417954298) is an individual gastroenterology provider in Inverness, Florida, licensed in Florida (ME71187) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1975).

NPPES Registry Identity

NPI1417954298

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameJOHANNES KARL MARTENSSONCredential: M.D.

Location Address3653 E FOREST DRInverness, FL 34453-0787

Mailing Address3653 E Forest DrInverness, FL 34453-0787 · (352) 344-8080 · Fax (352) 344-0631

Phone(352) 344-8080

Fax(352) 344-0631

Sole ProprietorNo

Medical School CMSOtherGraduated 1975

Enumeration DateJuly 7, 2005

Last NPPES UpdateSeptember 5, 2007

✔ NPI 1417954298 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 · ME71187

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.

3653 E FOREST DR, Inverness, FL 34453

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Other Identifiers 11

Other203499FL · Avmed Health Plans

Other76981NY · Vytra Health Plans

OtherMD984FLAK · Alaska Medicaid

Medicare PIN32728FL

Other6015923NY · Group Health Incorporated

Medicare UPINF96538FL

Other0250317FL · Cigna Healthcare

Other32728FL · Bcbs Of Florida

Other2900908FL · United Health Care

OtherP2957611FL · Oxford Health Plans

Other2158646CA · First Health

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company), Oscar Health Maintenance Organization of Florida.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

Johannes Karl Martensson M.d. 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 ID5597656967

PECOS Enrollment IDI20100415000980

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 3

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.

308 services160 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.

49 services41 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.

19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 34453 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 2

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

CITRUS GASTROENTEROLOGY MGT PLC

Internal Medicine (Gastroenterology)

3653 E FOREST DR
INVERNESS, FL 34453

Citrus County (352) 344-8080

CITRUS GASTROENTEROLOGY PA

Internal Medicine (Gastroenterology)

3653 E FOREST DR
INVERNESS, FL 34453

Citrus County (352) 344-8080

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 Johannes Martensson's NPI number?

The NPI number for Johannes Martensson is 1417954298. It was assigned to this individual provider in the NPPES registry on July 7, 2005.

Where is Johannes Martensson located?

Johannes Martensson practices at 3653 E Forest Dr, Inverness, FL 34453. The listed phone number is (352) 344-8080.

What is Johannes Martensson's specialty?

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

Is Johannes Martensson enrolled in Medicare?

Yes. Johannes Martensson 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 Johannes Martensson accept?

Health plans from Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company) and Oscar Health Maintenance Organization of Florida list Johannes Martensson 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.

When was this NPI record last updated?

The NPPES record for Johannes Martensson was last updated on September 5, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.