2026 NPPES data Hematology (Internal Medicine) Physician NPI 1841209426 M.D.
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SUSANNA GAIKAZIAN, M.D.

Hematology (Internal Medicine) Physician in ESTERO, Florida. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
636
Medicare Part D claims · 163 beneficiaries · Hematology (Internal Medicine) Physician avg: 693
Generic prescribing
79%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.3K
56 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SUSANNA GAIKAZIAN, M.D. is a Hematology (Internal Medicine) Physician ([object Object]) practicing in ESTERO, Florida with a Medicare Part D prescribing footprint of 636 claims across 163 beneficiaries — 21% brand-name prescribing . Industry payments of $1.3K across 56 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SUSANNA GAIKAZIAN, M.D. filed 636 Medicare Part D claims in 2023 across ESTERO, Florida. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SUSANNA GAIKAZIAN, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

SUSANNA GAIKAZIAN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 08/05/2006

NPI 1841209426

Primary specialty

Hematology (Internal Medicine) Physician

Niche

1,436 US NPIs in this specialty

Medicare Part D claims

636 8% vs specialty avg

2023 prescription claims

Specialty avg: 693

Specialty distribution in Florida

How Hematology (Internal Medicine) Physician compares to other specialties among Florida providers

Florida providers

Hematology (Internal Medicine) Physician share within Florida

1. Hematology (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hematology (Internal Medicine) Physician share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Hematology (Internal Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hematology (Internal Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Hematology (Internal Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hematology (Internal Medicine) Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

SUSANNA GAIKAZIAN, M.D. is a Hematology (Internal Medicine) Physician provider practicing in ESTERO, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1841209426. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SUSANNA GAIKAZIAN, M.D. appears in the CMS NPPES registry as a Hematology (Internal Medicine) Physician provider holding M.D. credentials at 8440 MURANO DEL LAGO DR, ESTERO, FL, 34135, with a listed phone of (239) 221-5402. NPI 1841209426 was issued on 08/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GAIKAZIAN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 636 prescription claims written by this provider, covering 163 Medicare beneficiaries and totaling roughly $803K in drug spend, split 21% brand-name and 79% generic by claim count, with an opioid prescribing rate of 3.8%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Hematology (Internal Medicine) Physician is a narrow specialty nationwide, with 1,436 enrolled providers across 50 states and an average of 693 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

8440 MURANO DEL LAGO DR
ESTERO, FL 34135

Provider Details

NPI 1841209426
Specialty Hematology (Internal Medicine) Physician
Credentials M.D.
Gender Female
NPI Issued 08/05/2006

Hospital and facility affiliations

Facilities where SUSANNA GAIKAZIAN, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

FLORIDA CANCER SPECIALISTS AND RESEARCH INSTITUTE, LLC
ESTERO, FL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for SUSANNA GAIKAZIAN, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.3K

Largest payer

Merck Sharp & Dohme LLC

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Florida FLDOH 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 — they are NOT specific to SUSANNA GAIKAZIAN, M.D.. To verify SUSANNA GAIKAZIAN, M.D.'s current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

SUSANNA GAIKAZIAN, M.D. — brand share 21.0%
Specialty average (est.)

21% brand-name claims vs 79% generic, on 636 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

636
Total Claims
$803K
Total Drug Cost
163
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
936
Total Day Supply
24,684
Brand vs Generic
21% brand / 79% generic
Brand Drug Cost
$788K
Generic Drug Cost
$16K
Opioid Claims
24 (3.8% rate)
Antibiotic Claims
27

Patient Demographics

Average Patient Age
75.0 years
Avg HCC Risk Score
2.05
Gender Split
75% female / 25% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Anastrozole
92
Eliquis
Apixaban
39
Hydroxyurea
38
Letrozole
26
Nystatin
26
Ondansetron Hcl
23
Ondansetron Odt
Ondansetron
23
Lorazepam
18
Prednisone
17
Venclexta
Venetoclax
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Hematology (Internal Medicine) Physician Overview

How SUSANNA GAIKAZIAN, M.D. fits within the Hematology (Internal Medicine) Physician landscape nationally.

1,436
Hematology (Internal Medicine) Physician Providers in US
50
States with Hematology (Internal Medicine) Physician
693
Avg Claims per Provider

SUSANNA GAIKAZIAN, M.D.'s 636 claims are below the specialty average of 693.

Nearby Hematology (Internal Medicine) Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as GAIKAZIAN.

Compare Hematology (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SUSANNA GAIKAZIAN, M.D.'s specialty?
SUSANNA GAIKAZIAN, M.D. specializes in Hematology (Internal Medicine) Physician and practices in ESTERO, Florida. Credentials: M.D..
How much does SUSANNA GAIKAZIAN, M.D. prescribe under Medicare Part D?
In 2023, SUSANNA GAIKAZIAN, M.D. wrote 636 Medicare Part D claims totaling $803K in drug costs for 163 beneficiaries.
Where is SUSANNA GAIKAZIAN, M.D. located?
SUSANNA GAIKAZIAN, M.D. is located at 8440 MURANO DEL LAGO DR, ESTERO, FL, 34135. Phone: (239) 221-5402.
What is SUSANNA GAIKAZIAN, M.D.'s NPI number?
SUSANNA GAIKAZIAN, M.D.'s National Provider Identifier (NPI) is 1841209426, issued on 08/05/2006.
Does SUSANNA GAIKAZIAN, M.D. prescribe more brand-name or generic drugs?
SUSANNA GAIKAZIAN, M.D.'s prescribing is 21% brand-name and 79% generic drugs by claim count, with $788K in brand drug costs.
Does SUSANNA GAIKAZIAN, M.D. prescribe opioids?
Yes, SUSANNA GAIKAZIAN, M.D. had 24 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
How many Hematology (Internal Medicine) Physician providers are there in the US?
There are 1,436 Hematology (Internal Medicine) Physician providers across 50 states in the US. The average Hematology (Internal Medicine) Physician provider writes 693 Medicare Part D claims per year.
What drugs does SUSANNA GAIKAZIAN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, SUSANNA GAIKAZIAN, M.D.'s most frequently prescribed drugs include Anastrozole, Eliquis, Hydroxyurea. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SUSANNA GAIKAZIAN, M.D. accept Medicare?
SUSANNA GAIKAZIAN, M.D. appears in CMS Medicare data with 636 Part D claims and 163 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUSANNA GAIKAZIAN, M.D.'s credentials?
SUSANNA GAIKAZIAN, M.D.'s NPI is 1841209426 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology