Active NPI 1255338083 Individual Practitioner Female Practitioner

Dr. Mary J King , DO

Internal Medicine • Largo, FL

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Mary King, DO is a certified Internal Medicine practicing in Largo, FL. With approximately 31 years of clinical experience since graduating from At Still University Of Health Sciences, College Of Osteo Med, Kirksville in 1995, Dr. King delivers high-quality medical care to the local community at 10225 ULMERTON RD STE 1A.

Dr. King is affiliated with Hernando Pasco Primary Care Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit, annual depression screening, 5 to. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

10225 Ulmerton Rd Ste 1a

Largo, FL 337713522

Telephone 7275857408

Fax 8669802443

Associated Practice Facility / Clinic

🏢 Mary J King Do Pa Facility NPI 1285000125

Medicare Profile & Education

Medical School

At Still University Of Health Sciences, College Of Osteo Med, Kirksville

Graduation Year

1995

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Largo, FL

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

31 Yrs +14.4 yrs vs City Avg

City Avg: 16.6 Yrs

State Avg: 26.5 Yrs

Regional Practice Density

99 Specialists

Practicing in Largo, FL (10650 Statewide)

Telehealth Adoption Rate

7.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

53.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. King (31 Years) 31 Yrs

Largo Specialty Average (16.6 Years) 16.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	106	69	$200.00	$88.31
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	52	52	$260.00	$125.49
G0444 Annual depression screening, 5 to 15 minutes	27	27	$36.00	$17.89
36415 Insertion of needle into vein for collection of blood sample	27	21	$12.00	$8.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	26	26	$280.00	$124.32
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	17	15	$112.00	$54.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	124	65	$180.06	$88.15
36415 Insertion of needle into vein for collection of blood sample	87	46	$11.93	$8.40
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	29	29	$260.00	$125.73
99496 Transitional care management services for problem of high complexity	18	16	$554.00	$269.18
G0444 Annual depression screening, 5 to 15 minutes	16	16	$36.00	$17.70

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	207	92	$179.01	$89.77
36415 Insertion of needle into vein for collection of blood sample	181	83	$6.72	$2.97
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	31	24	$110.84	$56.17
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	22	15	$30.73	$14.08

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample	251	106	$5.98	$2.99
99213 Established patient office or other outpatient visit, typically 15 minutes	243	104	$155.78	$90.60
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	26	20	$95.50	$55.76
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	19	17	$32.00	$13.97

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	552	231	$87.40	$74.33
36415 Insertion of needle into vein for collection of blood sample	464	205	$14.55	$2.96
81002 Urinalysis, manual test	61	46	$10.00	$3.40
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	56	24	$34.95	$14.08
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	46	15	$10.48	$2.01
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	30	27	$60.23	$45.08
99202 New patient office or other outpatient visit, typically 20 minutes	19	19	$95.63	$76.13

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	871	255	$84.90	$72.28
36415 Insertion of needle into vein for collection of blood sample	668	237	$15.00	$2.93
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	146	50	$35.00	$16.21
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	100	19	$10.00	$1.78
81002 Urinalysis, manual test	95	43	$10.00	$3.41
J1100 Injection, dexamethasone sodium phosphate, 1 mg	73	21	$3.00	$0.11
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	38	30	$58.00	$44.32
99202 New patient office or other outpatient visit, typically 20 minutes	34	34	$95.00	$75.76
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	24	20	$38.75	$22.09
93000 Routine ekg using at least 12 leads including interpretation and report	18	18	$60.00	$16.82
90756 Vaccine for influenza for injection into muscle	16	16	$27.00	$26.13
G0008 Administration of influenza virus vaccine	15	15	$35.00	$16.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	989	277	$84.91	$69.33
36415 Insertion of needle into vein for collection of blood sample	679	249	$15.00	$2.94
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	172	57	$35.00	$19.42
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	117	22	$10.00	$1.96
J1100 Injection, dexamethasone sodium phosphate, 1 mg	96	24	$3.00	$0.12
81002 Urinalysis, manual test	82	47	$10.00	$3.41
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional	32	22	$27.81	$20.40
G0008 Administration of influenza virus vaccine	30	29	$35.00	$19.91
93000 Routine ekg using at least 12 leads including interpretation and report	28	25	$60.00	$15.72
90756 Vaccine for influenza for injection into muscle	28	28	$27.00	$22.33
99202 New patient office or other outpatient visit, typically 20 minutes	23	23	$95.00	$72.25
J1040 Injection, methylprednisolone acetate, 80 mg	13	12	$25.00	$12.99
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	11	11	$125.00	$103.31

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	642	272	$85.67	$68.99
36415 Insertion of needle into vein for collection of blood sample	526	241	$15.00	$2.94
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	91	35	$35.00	$23.97
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg	68	23	$10.00	$2.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	65	51	$126.64	$102.80
81002 Urinalysis, manual test	60	37	$10.08	$3.43
G0008 Administration of influenza virus vaccine	34	34	$35.00	$24.61
Q2037 Influenza virus vaccine, split virus, when administered to individuals 3 years of age and older, for intramuscular use (fluvirin)	34	34	$35.00	$17.34
93000 Routine ekg using at least 12 leads including interpretation and report	16	16	$60.00	$16.26
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	13	13	$125.00	$104.13

Medical Specialties & State Licenses

CMS Verified: 2025-11-11

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License FL OS0007369

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.

Hospital & Practice Group Affiliations

Hernando Pasco Primary Care Llc

10225 Ulmerton Rd, Largo, FL 337713522

Phone: 7275857408

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

7 Associated Practitioners

Sierra Heptner

Physician Assistant

NPI 1083183826

Dr. Joy Ablordeppey , MD

Family Medicine

NPI 1124094719

Doctor of Medicine (M.D.)

Dr. Allen Finkelstein , DO

Family Medicine

NPI 1255395372

Doctor of Osteopathic Medicine (D.O.)

Dr. Leslie Duke , DO

Family Medicine

NPI 1528211919

Doctor of Osteopathic Medicine (D.O.)

Nicholas Hammond , ARNP

Nurse Practitioner - Adult Health

NPI 1588649800

Advanced Registered Nurse Practitioner

Eric Smith , PA

Physician Assistant - Medical

NPI 1639121387

Physician Assistant

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events

📍

Updated Practice Location November 11, 2025

Registered at 10225 ULMERTON RD STE 1A, LARGO, FL 337713522 (Tel: 7275857408)

📍

Updated Business Mailing Address November 11, 2025

Registered at PO BOX 850001, DEPT 8340, ORLANDO, FL 328850001 (Tel: 8135367277)

✅

NPI Profile Active May 19, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location May 19, 2016

Registered at 8130 66TH ST N, SUITE 1, PINELLAS PARK, FL 337812111 (Tel: 7275924994)

📍

Updated Business Mailing Address May 19, 2016

Registered at 8130 66TH ST N, SUITE 1, PINELLAS PARK, FL 337812111 (Tel: 7275924994)

👤

Provider Name / Credentials Updated May 19, 2016

Recorded as MARY KING, DO

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 19, 2016

Internal Medicine (License #OS0007369 in FL)

🟢

Initial NPI Registration & Enumeration July 07, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1255338083

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: July 07, 2005

Last Update: November 11, 2025

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

Po Box 850001, Dept 8340

Orlando, FL 328850001

Phone: 8135367277

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.