WILLIAM J GRISAITIS MD
NPI 1063404051
Dermatology in Maitland, FL

Q: What is William Grisaitis's NPI number?

The NPI number for William Grisaitis is 1063404051. It was assigned to this individual provider in the NPPES registry on August 17, 2005.

Q: What is William Grisaitis's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Q: When was this NPI record last updated?

The NPPES record for William Grisaitis was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 August 17, 2005PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

331 N MAITLAND AVE, BUILDING A SUITE 5, MAITLAND, FL 32751(407) 644-9030(407) 644-9440 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About William J Grisaitis Md NPPES

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

WILLIAM J GRISAITIS MD (NPI 1063404051) is an individual dermatology provider in Maitland, Florida, licensed in Florida (ME0035814) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Adventhealth Orlando, and is a graduate of Saint Louis University School Of Medicine (1977).

NPPES Registry Identity

NPI1063404051

Entity TypeIndividualMale

Primary Taxonomy207N00000X

Provider Legal NameWILLIAM J GRISAITISCredential: MD

Location Address331 N MAITLAND AVE, BUILDING A SUITE 5Maitland, FL 32751-4762

Mailing Address331 N Maitland Ave, Building A Suite 5Maitland, FL 32751-4762 · (407) 644-9030 · Fax (407) 644-9440

Phone(407) 644-9030

Fax(407) 644-9440

Sole ProprietorNo

Medical School CMSSaint Louis University School Of MedicineGraduated 1977

Enumeration DateAugust 17, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1063404051 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians

Taxonomy Code207N00000X

License✔ Licensed in FL · ME0035814

Definition

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

331 N MAITLAND AVE, Maitland, FL 32751

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Accepted Insurance

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

William J Grisaitis Md 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 ID3971637737

PECOS Enrollment IDI20100816000282

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 William Grisaitis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

William J Grisaitis MD PA

0.3 mi

Medical Specialty

331 N MAITLAND AVE, #A-5
Maitland, FL 32751

Reassigned Medicare billing, Florida enrollment

NPI 1831375435 (407) 644-9030

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 30

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 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.

2,067 services1,259 patients

Destruction of precancer skin growth, 2-14 growths 17003

This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.

1,296 services396 patients

Destruction of precancer skin growth, 1 growth 17000

"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.

951 services653 patients

Biopsy of related skin growth, first growth 11102

A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.

532 services456 patients

Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm 17261

This procedure involves the removal of a cancerous skin growth on the trunk, arms, or legs that is between 0.6 and 1.0 cm in size. The goal is to eliminate the cancerous cells and prevent further spread. The method of destruction may vary, including methods such as surgery, laser, or cryotherapy.

219 services146 patients

Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm 17262

This procedure involves removing a cancerous skin growth on the trunk, arms, or legs that is between 1.1 and 2.0 cm in size. The growth is destroyed using methods like surgery, laser, or freezing, aiming to eliminate cancer and prevent its spread.

171 services118 patients

Biopsy of related skin growth, each additional growth 11103

A biopsy of related skin growth is a procedure where a small piece of skin growth is removed for testing. If additional growths are identified, they may also be biopsied. This helps in diagnosing skin conditions and planning appropriate treatment.

157 services114 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

136 services121 patients

Destruction of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.6-1.0 cm 17281

This procedure involves the removal of cancerous skin growths on the face, ears, eyelids, nose, lips, or mouth that are between 0.6-1.0 cm in size. The goal is to eliminate cancer cells, preventing further spread and promoting health.

116 services87 patients

Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 0.6-1.0 cm 17271

This procedure involves the removal of a small cancerous skin growth, between 0.6 to 1.0 cm, located on the scalp, neck, hands, or feet. The aim is to eliminate the cancerous cells and prevent their spread. The treatment is done in a safe, controlled environment.

108 services82 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.

97 services97 patients

Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm 13132

This procedure involves the complex repair of a wound in areas like the forehead, cheeks, chin, mouth, neck, underarms, hands, or feet. The wound size ranges from 2.6-7.5 cm. The process includes cleaning, removing damaged tissue, and stitching the wound for proper healing.

92 services80 patients

Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 1.1-2.0 cm 17272

This procedure involves the removal of a cancerous skin growth measuring 1.1-2.0 cm, located on the scalp, neck, hands, or feet. The process may involve techniques like surgery, laser, or cryotherapy. The aim is to eliminate the cancer cells and prevent further spread.

91 services71 patients

Destruction of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less 17280

This is a procedure where a small cancerous skin growth on the face, ears, eyelids, nose, lips, or mouth is removed. The growth is 0.5 cm or less. The aim is to eliminate the cancer and prevent it from spreading. It's a common, safe method to treat skin cancer.

78 services65 patients

Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm 13121

This is a procedure to repair a complex wound on your scalp, arm, or leg that is 2.6-7.5 cm long. It involves cleaning, removing damaged tissue, and stitching the wound to promote healing. It's performed under local or general anesthesia.

61 services57 patients

Shaving of skin growth of body, arms, or legs, 0.6-1.0 cm 11301

This procedure involves the careful removal of a small skin growth on the body, arms, or legs. It's done by shaving off the growth that's 0.6-1.0 cm in size. It's a common, safe method to treat non-cancerous skin growths and improve skin appearance.

49 services43 patients

Removal of cancer skin growth of body, arms, or legs, 2.1-3.0 cm 11603

This procedure involves the removal of a cancerous skin growth, between 2.1 and 3.0 cm, from the body, arms, or legs. The area is numbed, then the growth is carefully cut out. The goal is to eliminate all cancer cells while minimizing scarring.

45 services43 patients

Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 2.1-3.0 cm 11643

This procedure involves the careful removal of a cancerous growth on the face, ears, eyelids, nose, lips, or mouth that measures between 2.1 to 3.0 cm. The goal is to eliminate the cancer while preserving surrounding healthy tissue.

42 services41 patients

Destruction of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm 17282

This procedure involves the removal of a cancerous skin growth on the face, ears, eyelids, nose, lips, or mouth that measures between 1.1 to 2.0 cm. It's done to prevent the spread of cancer and improve health.

42 services37 patients

Removal of cancer skin growth of face, ears, eyelids, nose, lips, or mouth, 1.1-2.0 cm 11642

This procedure involves the surgical removal of a cancerous skin growth on the face, ears, eyelids, nose, lips, or mouth. The growth is between 1.1-2.0 cm in size. This is done to prevent the cancer from spreading and to restore health.

40 services40 patients

Removal of cancer skin growth of scalp, neck, hands, feet, or genitals, 2.1-3.0 cm 11623

This procedure involves removing a cancerous growth on the scalp, neck, hands, or feet that measures between 2.1 and 3.0 cm. The process includes numbing the area, excising the growth, and then stitching the wound for healing. The aim is to eliminate cancer cells and prevent spread.

34 services30 patients

Destruction of cancer skin growth of trunk, arms, or legs, 2.1-3.0 cm 17263

This procedure targets and eliminates a cancerous skin growth between 2.1 and 3.0 cm on your trunk, arms, or legs. It's done by applying specific treatments like heat, cold, or medicated creams to destroy the cancer cells, preventing them from spreading.

31 services29 patients

Destruction of cancer skin growth of trunk, arms, or legs, 0.5 cm or less 17260

This procedure involves removing a small cancerous skin growth (0.5 cm or less) located on the trunk, arms, or legs. The growth is destroyed using techniques such as surgery, lasers, or radiation, aiding in the prevention of cancer spread.

28 services28 patients

Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 0.5 cm or less 17270

This is a procedure to remove a small cancerous skin growth (0.5 cm or less) located on the scalp, neck, hands, or feet. The process involves the careful destruction of the growth to prevent its spread, promoting healthier skin.

26 services26 patients

Shaving of skin growth of scalp, neck, hands, feet, or genitals, 0.6-1.0 cm 11306

This procedure involves the careful removal of a small skin growth, between 0.6-1.0 cm in size, from the scalp, neck, hands, or feet. It's done using a special tool to gently shave off the growth, ensuring minimal discomfort.

25 services25 patients

Complicated repair of wound of trunk, 2.6-7.5 cm 13101

This service involves the intricate repair of a wound on your body's main structure, between your neck and limbs. The wound measures 2.6-7.5 cm. The procedure includes deep-layer stitching and may involve repairing damaged tissue.

25 services24 patients

Biopsy of ear 69100

A biopsy of the ear is a medical procedure where a small sample of tissue is taken from your ear for examination. This helps doctors diagnose any abnormalities or diseases. It's a simple process, usually done under local anesthesia, and has minimal risks.

25 services25 patients

Full thickness skin graft to nose, ears, eyelids, or lips, 20.0 sq cm or less 15260

A full thickness skin graft is a procedure where a layer of skin is taken from one area of the body and transplanted to another. If it's done on the nose, ears, eyelids, or lips, it helps restore these areas when damaged. The size of the graft is 20.0 sq cm or less.

20 services18 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.

18 services18 patients

Shaving of skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less 11310

This procedure involves the careful removal of a small skin growth on the face or related areas. A medical professional uses a special tool to gently shave off the growth, which is 0.5 cm or less. It's a common, safe procedure.

12 services11 patients

Hospital Affiliations CMS Care Compare

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

Adventhealth Orlando

Acute Care Hospitals · Orlando, FL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number100007

Location601 E Rollins StOrlando, FL 32803 · Orange County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32751 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

$87.62 typical visit price

range $56.00 – $171.84

Typical copayment $21.90 (range $14.00 – $42.96)

Most-billed visit code 99203

Established Patient

$70.04 typical visit price

range $17.57 – $139.16

Typical copayment $17.51 (range $4.39 – $34.79)

Most-billed visit code 99213

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.

75/100

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

Individually scored

Reported Quality Measures

Biopsy Follow-Up

Percentage of new patients whose biopsy results have been reviewed and communicated to the primary care/referring physician and patient by the performing physician

100%22 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

ORLANDO ADVANCED PRIMARY CARE LLC

Internal Medicine

331 N MAITLAND AVE, SUITE C-1
MAITLAND, FL 32751

Orange County (407) 644-2218

ANDREW AZIZ MD

Ophthalmology

331 N MAITLAND AVE, STE B2
MAITLAND, FL 32751

Orange County (407) 740-0331

FELICE CENTER FOR PEDIATRIC REHABILITATION - MAITLAND

Speech-Language Pathologist

331 N MAITLAND AVE, SUITE A-3
MAITLAND, FL 32751

Orange County (321) 972-3960

AFFILIATED EYE SPECIALISTS P A

Specialist

331 N MAITLAND AVE, STE B2
MAITLAND, FL 32751

Orange County (407) 740-0331

THOMAS B BLAKE III MD PA

Colon & Rectal Surgery

331 N MAITLAND AVE, STE A-2
MAITLAND, FL 32751

Orange County (407) 629-5141

THOMAS B BLAKE III MD

Specialist

331 N MAITLAND AVE, SUITE A-2
MAITLAND, FL 32751

Orange County (407) 629-5141

MARC FRANKLIN SCHWARTZ MD

Specialist

331 N MAITLAND AVE, STE B2
MAITLAND, FL 32751

Orange County (407) 740-0331

DR. JOSEPH LOUIS COVELLI MD

Internal Medicine (Pulmonary Disease)

331 N MAITLAND AVE, STE C 1
MAITLAND, FL 32751

Orange County (407) 644-2218

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 William Grisaitis's NPI number?

The NPI number for William Grisaitis is 1063404051. It was assigned to this individual provider in the NPPES registry on August 17, 2005.

Where is William Grisaitis located?

William Grisaitis practices at 331 N Maitland Ave Building A Suite 5, Maitland, FL 32751. The listed phone number is (407) 644-9030.

What is William Grisaitis's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is William Grisaitis enrolled in Medicare?

Yes. William Grisaitis 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 William Grisaitis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Grisaitis reassigns Medicare benefits to William J Grisaitis MD PA (Maitland, 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 William Grisaitis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Grisaitis accept?

Health plans from AvMed, Florida Blue (BlueCross BlueShield FL) and UnitedHealthcare list William Grisaitis 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 William Grisaitis affiliated with any hospitals?

According to CMS data, William Grisaitis is affiliated with Adventhealth Orlando.

When was this NPI record last updated?

The NPPES record for William Grisaitis was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.