DR. MARY J KING DO
NPI 1255338083
Internal Medicine in Largo, FL

Active since July 07, 2005PECOS EnrolledAccepts Medicare Assignment
10225 ULMERTON RD STE 1A, LARGO, FL 33771(727) 585-7408(866) 980-2443 Get Directions Write a Review

NPPES record last updated: November 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 11, 2025, May 19, 2016 (2 updates tracked since 2016).

About Dr. Mary J King Do NPPES

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

DR. MARY J KING DO (NPI 1255338083) is an individual internal medicine provider in Largo, Florida, licensed in Florida (OS0007369) and active in the NPI registry since July 2005. She is enrolled in Medicare PECOS, is affiliated with Morton Plant Hospital, and is a graduate of At Still University Of Health Sciences, College Of Osteo Med, Kirksville (1995).

NPPES Registry Identity

NPI1255338083
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MARY J KINGCredential: DO
Location Address10225 ULMERTON RD STE 1ALargo, FL 33771-3522
Mailing AddressPo Box 850001, Dept 8340Orlando, FL 32885-0001 · (813) 536-7277 · Fax (855) 830-1722
Fax(866) 980-2443
Sole ProprietorYes
Medical School CMSAt Still University Of Health Sciences, College Of Osteo Med, KirksvilleGraduated 1995
Enumeration DateJuly 7, 2005
Last NPPES UpdateNovember 11, 20252 updates tracked since enumeration
NPPES CertifiedNovember 11, 2025
NPI 1255338083 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in FL · OS0007369
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
10225 ULMERTON RD STE 1A, Largo, FL 33771

Accepted 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

Dr. Mary J King Do 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 ID4789768508
PECOS Enrollment IDI20080303000495
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 6

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.
106 services69 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
52 services52 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.
27 services21 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
27 services27 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.
26 services26 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.
17 services15 patients

Hospital Affiliations CMS Care Compare

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

Morton Plant Hospital

Acute Care Hospitals · Clearwater, FL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100127
Location300 Pinellas StClearwater, FL 33756 · Pinellas County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 33771 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.

Referred Medical Equipment & Supplies CMS DME claims 6

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
11 suppliers27 claims98 services$6.68 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
6 suppliers12 claims13 services$1.05 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
3 suppliers12 claims22 services$25.42 avg. paid by Medicare
Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
4 suppliers14 claims48 services$1.68 avg. paid by Medicare
Humidifier, heated, used with positive airway pressure device E0562
DME-Other DME · category DE001N
2 suppliers11 claims12 services$11.52 avg. paid by Medicare
Continuous positive airway pressure (cpap) device E0601
DME-Other DME · category DE001N
3 suppliers25 claims25 services$26.75 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 5

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

Physician Assistant
10225 ULMERTON RD STE 1A
LARGO, FL 33771
Family Medicine
10225 ULMERTON RD STE 1A
LARGO, FL 33771
Nurse Practitioner (Adult Health)
10225 ULMERTON RD STE 1A
LARGO, FL 33771
Internal Medicine
10225 ULMERTON RD STE 1A
LARGO, FL 33771
Nurse Practitioner (Family)
10225 ULMERTON RD STE 1A
LARGO, FL 33771

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 Mary King's NPI number?

The NPI number for Mary King is 1255338083. It was assigned to this individual provider in the NPPES registry on July 7, 2005.

Where is Mary King located?

Mary King practices at 10225 Ulmerton Rd Ste 1A, Largo, FL 33771. The listed phone number is (727) 585-7408.

What is Mary King's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mary King enrolled in Medicare?

Yes. Mary 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.

What insurance does Mary King accept?

Health plans from Ambetter Health, Ambetter from Superior HealthPlan, Ambetter of Alabama, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Mary 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 Mary King affiliated with any hospitals?

According to CMS data, Mary King is affiliated with Morton Plant Hospital.

When was this NPI record last updated?

The NPPES record for Mary King was last updated on November 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.