Active NPI 1639498223 Individual Practitioner Female Practitioner

Kristen Marie Kesser Williams , PA

Physician Assistant • Ocala, FL

Professional Overview & Biography Verified Profile Summary

Kristen Williams, PA is a registered healthcare professional specializing in Physician Assistant in Ocala, FL. Practice services are available at 1500 SW 1ST AVE under active NPI credentials.

Frequently performed procedures and clinical services include emergency department visit for life threatening or functioning severity, emergency department visit with moderate level of medical decision making, emergency department visit with low level of medical decision making. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1500 Sw 1st Ave

Ocala, FL 344716504

Telephone 3523517600

Fax 3524025352

Associated Practice Facility / Clinic

🏢 Munroe Regional Health System, Inc. Facility NPI 1548265739

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Ocala, FL

Active Practitioner

Practitioner Clinical Experience

Active

City Avg: 11.4 Yrs

State Avg: 11.1 Yrs

Regional Practice Density

122 Specialists

Practicing in Ocala, FL (10376 Statewide)

Telehealth Adoption Rate

4.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

84.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

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
99285 Emergency department visit for life threatening or functioning severity	99	99	$984.00	$157.35
99284 Emergency department visit with moderate level of medical decision making	80	78	$678.00	$108.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99284 Emergency department visit with moderate level of medical decision making	75	73	$750.53	$105.88
99285 Emergency department visit for life threatening or functioning severity	55	54	$1109.11	$154.53
99283 Emergency department visit with low level of medical decision making	19	19	$429.89	$63.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	100	98	$1967.00	$157.23
99283 Emergency department visit with low level of medical decision making	35	35	$914.00	$64.25
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	13	12	$80.00	$7.13
99284 Emergency department visit with moderate level of medical decision making	13	13	$1358.00	$108.24

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	99	96	$1967.00	$160.01
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	38	37	$80.00	$7.23
99283 Emergency department visit with low level of medical decision making	19	19	$914.00	$64.31
99284 Emergency department visit with moderate level of medical decision making	16	16	$1358.00	$109.26

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	160	159	$1967.00	$154.52
99284 Emergency department visit with moderate level of medical decision making	39	39	$1358.00	$106.45
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	38	37	$80.00	$7.38
99283 Emergency department visit with low level of medical decision making	33	33	$914.00	$57.74
99291 Critical care, first 30-74 minutes	12	12	$2143.00	$196.28

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	153	148	$1967.00	$150.35
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	43	43	$80.00	$7.26
99284 Emergency department visit with moderate level of medical decision making	36	36	$1358.00	$101.98
99283 Emergency department visit with low level of medical decision making	34	34	$914.00	$53.77

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	193	188	$1967.00	$149.97
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	75	74	$80.00	$7.25
99283 Emergency department visit with low level of medical decision making	26	26	$914.00	$53.71
99284 Emergency department visit with moderate level of medical decision making	23	23	$1358.00	$101.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99285 Emergency department visit for life threatening or functioning severity	181	179	$1951.42	$149.38
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only	68	68	$80.59	$7.23
99284 Emergency department visit with moderate level of medical decision making	23	23	$1399.65	$101.44
99283 Emergency department visit with low level of medical decision making	22	22	$902.00	$52.75

Medical Specialties & State Licenses

CMS Verified: 2026-08-05

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License FL PENDING

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

002504200 (FL)

Secondary Practice Locations

1600 Sw Archer Rd

Gainesville, FL 326103003

Phone: 3522650111

Practice Associates & Co-Workers

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

4 Associated Practitioners

Dr. Louisa Oakenell , MD

Emergency Medicine

NPI 1437103363

Doctor of Medicine (M.D.)

Angel Adams , ARNP

Nurse Practitioner - Family

NPI 1568610251

Advanced Registered Nurse Practitioner

Dr. Christine Cochran , DO

Emergency Medicine

NPI 1588715049

Doctor of Osteopathic Medicine (D.O.)

Ashley Mazalewski , PA-C

Physician Assistant

NPI 1629232780

Physician Assistant (Certified)

Career & Practice History Timeline

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

7 Historical Events

📍

Updated Business Mailing Address August 05, 2026

Registered at PO BOX 100186, GAINESVILLE, FL 326100186 (Tel: 3522655911)

✅

NPI Profile Active September 03, 2014

NPI status registered as active in NPPES database

📍

Updated Practice Location September 03, 2014

Registered at 1500 SW 1ST AVE, OCALA, FL 344716504 (Tel: 3523517600)

📍

Updated Business Mailing Address September 03, 2014

Registered at 1500 SW 1ST AVE, OCALA, FL 344716504 (Tel: 3523517600)

👤

Provider Name / Credentials Updated September 03, 2014

Recorded as KRISTEN WILLIAMS, PA

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 03, 2014

Physician Assistant (License #PENDING in FL)

🟢

Initial NPI Registration & Enumeration May 22, 2010

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1639498223

Entity Type:

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

Enumeration Date: May 22, 2010

Last Update: August 05, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 100186

Gainesville, FL 326100186

Phone: 3522655911

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.