DR. MELISSA MCGUINN KING M.D.
NPI 1336340637
Internal Medicine - Hematology & Oncology in Fort Walton Beach, FL

Q: What is Melissa King's NPI number?

The NPI number for Melissa King is 1336340637. It was assigned to this individual provider in the NPPES registry on May 31, 2007.

Q: What is Melissa King's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Melissa King was last updated on May 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 May 31, 2007PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

1024 MAR WALT DR, FORT WALTON BEACH, FL 32547(850) 863-3148(850) 863-3132 Get Directions Write a Review

NPPES record last updated: May 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 28, 2026, Apr 27, 2018 (2 updates tracked since 2018).

On this page

About Dr. Melissa Mcguinn King M.d. NPPES

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

DR. MELISSA MCGUINN KING M.D. (NPI 1336340637) is an individual hematology & oncology provider in Fort Walton Beach, Florida, licensed in Virginia (0101238053) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Hca Florida Twin Cities Hospital, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1336340637

Entity TypeIndividualFemale

Primary Taxonomy207RH0003X

Provider Legal NameDR. MELISSA MCGUINN KINGCredential: M.D.

Location Address1024 MAR WALT DRFort Walton Beach, FL 32547-6645

Mailing Address1024 Mar Walt DrFort Walton Beach, FL 32547-6645 · (850) 863-3148 · Fax (850) 883-8517

Phone(850) 863-3148

Fax(850) 863-3132

Sole ProprietorYes

Medical School CMSOtherGraduated 2003

Enumeration DateMay 31, 2007

Last NPPES UpdateMay 28, 20262 updates tracked since enumeration

NPPES CertifiedMay 28, 2026

✔ NPI 1336340637 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in VA · 0101238053

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

1024 MAR WALT DR, Fort Walton Beach, FL 32547

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Melissa Mcguinn King 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 ID9830378389

PECOS Enrollment IDI20110128001028

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.

Medicare Billing Reassignment

Medicare enrollment records show Melissa King reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Emerald Coast Oncology And Hematology Assoc., P.A.

Same address

Hematology & Oncology

1024 MAR WALT DR
Fort Walton Beach, FL 32547

Reassigned Medicare billing, Florida enrollment
6 clinicians in this Medicare group

NPI 1861421919 (850) 863-3148

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 32

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, ferric carboxymaltose, 1 mg J1439

Ferric carboxymaltose is an iron supplement injection. It's given when your body needs more iron than you can consume through diet, like in anemia. The injection is administered by a healthcare professional into a vein.

19,500 services13 patients

Injection, denosumab, 1 mg J0897

Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.

12,960 services57 patients

Injection, fosaprepitant, 1 mg J1453

Fosaprepitant is an anti-nausea medication given via injection. It's often used to prevent nausea and vomiting caused by chemotherapy. This injection blocks signals to the brain that trigger these symptoms, helping you feel better.

10,500 services15 patients

Injection, epoetin alfa, (for non-esrd use), 1000 units J0885

Epoetin alfa is a medication injected to help your body produce more red blood cells, improving energy levels and reducing tiredness. It's often used for patients with certain types of anemia. Each injection contains 1000 units of the medicine.

7,260 services11 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

2,724 services30 patients

Injection, cetirizine hydrochloride, 0.5 mg J1201

Cetirizine hydrochloride is an antihistamine injection. It helps manage allergy symptoms like sneezing, itching, watery eyes, and runny nose. The 0.5 mg dose is administered via injection by a healthcare provider.

1,700 services18 patients

Injection, palonosetron hcl, 25 mcg J2469

Palonosetron HCL is an injection used to prevent nausea and vomiting caused by chemotherapy. It works by blocking a natural substance (serotonin) in the body that can cause vomiting. This helps improve your comfort during cancer treatment.

1,421 services24 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

1,244 services213 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.

464 services147 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.

452 services194 patients

Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less 96367

This procedure involves injecting fluids or medication directly into your vein. It's used for treatment, prevention, or diagnosis. An additional sequential infusion may be given within an hour if needed. This helps to ensure the medicine is distributed effectively in your body.

399 services28 patients

Administration of chemotherapy into vein, 1 hour or less 96413

Chemotherapy is a treatment that uses drugs to destroy cancer cells. When administered into a vein, it's often through an IV. This procedure usually lasts 1 hour or less. You may feel a slight pinch as the needle is inserted, but it's generally painless.

388 services39 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

350 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.

338 services209 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

283 services94 patients

Injection of additional new drug or substance into vein 96375

This procedure involves introducing a new medication or substance into your bloodstream via a vein. It's typically done using a small needle. The substance can help treat various conditions or assist in diagnostic procedures. It's generally safe and monitored by professionals.

277 services41 patients

Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle 96401

This procedure involves giving anti-cancer drugs, which don't contain hormones, into the muscle or under the skin. These drugs help to stop the growth of cancer cells. The process is usually quick and done by a healthcare professional.

249 services46 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

222 services98 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

134 services33 patients

Administration of additional new drug or substance into vein, 1 hour or less 96417

This procedure involves introducing a new drug or substance into your vein, typically via an IV drip. It lasts for an hour or less. This method allows the substance to quickly reach your bloodstream, ensuring rapid and effective treatment.

120 services23 patients

Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg J3420

This is a procedure where a small dose of Vitamin B-12, also known as Cyanocobalamin, is injected into your body. This vitamin is essential for nerve function and the production of red blood cells. It's often used to treat vitamin B-12 deficiency.

90 services15 patients

Infusion into a vein for hydration, each additional hour 96361

This procedure involves delivering fluids directly into your vein to keep your body hydrated. It is typically done when oral hydration is insufficient. Each additional hour means more fluid is infused to ensure adequate hydration.

89 services17 patients

Leuprolide acetate (for depot suspension), 7.5 mg J9217

Leuprolide acetate is a medication that helps regulate certain hormone levels in your body. It's injected into your muscle once a month. This treatment can help manage various health conditions related to hormone imbalance. Always follow your doctor's instructions.

87 services11 patients

Infusion, normal saline solution , 1000 cc J7030

An infusion of normal saline solution, 1000 cc, is a common medical procedure. It involves introducing a saltwater solution into your bloodstream via an intravenous (IV) line. This helps to hydrate your body, correct electrolyte imbalances, and deliver medications if needed.

84 services15 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

77 services77 patients

Administration of chemotherapy into vein, each additional hour 96415

Chemotherapy is a treatment method that uses drugs to destroy cancer cells. The drugs are administered into a vein, usually in the arm. Each additional hour of chemotherapy allows for more of the medication to enter your bloodstream to fight against the cancer cells.

70 services16 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.

43 services43 patients

Infusion into a vein for hydration, 31-60 minutes 96360

This is a procedure where a sterile solution is administered into your vein to help restore body fluid balance. It typically lasts between 31-60 minutes. It's a safe, common treatment for dehydration or to deliver medication.

42 services17 patients

Irrigation of implanted venous access drug delivery device 96523

Irrigation of an implanted venous access drug delivery device is a procedure to clean or unblock the device. This device is implanted under your skin to allow easy, frequent, and long-term access to your veins for medication delivery. The process involves flushing the device with a sterile solution to ensure it works properly.

38 services13 patients

Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle 96402

This procedure involves the injection of hormone-based anti-cancer drugs under the skin or into a muscle. These medications help to slow down or stop the growth of certain types of cancer cells. The process is usually quick and can be performed in a clinic or hospital.

33 services12 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

22 services19 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.

18 services18 patients

Hospital Affiliations CMS Care Compare 3

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

Hca Florida Twin Cities Hospital

Acute Care Hospitals · Niceville, FL

4/5 CMS rating

OwnershipProprietary

CMS Certification Number100054

Location2190 Hwy 85 NNiceville, FL 32578 · Okaloosa County

Emergency services

Hca Florida Fort Walton-Destin Hospital

Acute Care Hospitals · Fort Walton Beach, FL

3/5 CMS rating

OwnershipProprietary

CMS Certification Number100223

Location1000 Mar-Walt DrFort Walton Beach, FL 32547 · Okaloosa County

Emergency services Birthing friendly

Sacred Heart Hospital On The Emerald Coast

Acute Care Hospitals · Miramar Beach, FL

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number100292

Location7800 Us Hwy 98 WMiramar Beach, FL 32550 · Walton County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32547 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

$171.84 typical visit price

range $56.00 – $171.84

Typical copayment $42.96 (range $14.00 – $42.96)

Most-billed visit code 99205

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

95.75

Improvement Activities

Other Providers at the Same Location NPPES 9

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

MING CHANG M.D

Internal Medicine (Hematology & Oncology)

1024 MAR WALT DR
FT WALTON BEACH, FL 32547

Okaloosa County (850) 863-3148

HEATHER WEINBERG FNP

Nurse Practitioner (Family)

1024 MAR WALT DR
FORT WALTON BEACH, FL 32547

Okaloosa County (850) 863-3148

MEGAN HARDY PA-C

Physician Assistant (Medical)

1024 MAR WALT DR
FORT WALTON BEACH, FL 32547

Okaloosa County (850) 863-3148

BRIAN DUKE

Nurse Practitioner (Family)

1024 MAR WALT DR
FORT WALTON BEACH, FL 32547

Okaloosa County (850) 863-3148

YUNHUI HSIANG M.D., PHD

Internal Medicine (Medical Oncology)

1024 MAR WALT DR
FT WALTON BEACH, FL 32547

Okaloosa County (850) 863-3148

HARVEY HSIANG M.D.

Internal Medicine (Medical Oncology)

1024 MAR WALT DR
FT WALTON BEACH, FL 32547

Okaloosa County (850) 863-3148

KYLA WENTZ

Physician Assistant

1024 MAR WALT DR
FORT WALTON BEACH, FL 32547

Okaloosa County (850) 863-3132

EMERALD COAST ONCOLOGY AND HEMATOLOGY ASSOC., P.A.

Internal Medicine (Hematology & Oncology)

1024 MAR WALT DR
FORT WALTON BEACH, FL 32547

Okaloosa County (850) 863-3148

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 Melissa King's NPI number?

The NPI number for Melissa King is 1336340637. It was assigned to this individual provider in the NPPES registry on May 31, 2007.

Where is Melissa King located?

Melissa King practices at 1024 Mar Walt Dr, Fort Walton Beach, FL 32547. The listed phone number is (850) 863-3148.

What is Melissa King's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Melissa King enrolled in Medicare?

Yes. Melissa King 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.

Which organization bills Medicare for Melissa King's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa King reassigns Medicare benefits to Emerald Coast Oncology And Hematology Assoc., P.A. (Fort Walton Beach, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Melissa King's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melissa King accept?

Health plans from Florida Blue (BlueCross BlueShield FL) list Melissa King 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 Melissa King affiliated with any hospitals?

According to CMS data, Melissa King is affiliated with Hca Florida Twin Cities Hospital, Hca Florida Fort Walton-Destin Hospital and Sacred Heart Hospital On The Emerald Coast.

When was this NPI record last updated?

The NPPES record for Melissa King was last updated on May 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.