Active NPI 1013155126 Individual Practitioner Female Practitioner

Katherine Williams , PA

Physician Assistant • Oklahoma City, OK

✓ Accepts Medicare Assignment

Public Directory Information & Medical Disclaimer

This profile is compiled from official public domain records provided by CMS and the NPPES registry. TRUE-MEDINFO is an independent reference directory and does not provide medical advice, diagnosis, or treatment recommendations. Always consult a licensed medical professional for personal health decisions.

Professional Overview & Biography Verified Profile Summary

Katherine Williams, PA is a registered Physician Assistant practitioner in Oklahoma City, OK. With approximately 18 years of clinical practice since completing medical education in 2008, Katherine Williams provides healthcare services at the registered practice location at 1801 N BROADWAY AVE.

Katherine Williams is affiliated with Advance Physicians Group and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19). Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1801 N Broadway Ave

Oklahoma City, OK 731033446

Telephone 4055281936

Associated Practice Facility / Clinic

🏢 The Broadway Clinic Facility NPI 1760695274

Medicare Profile & Education

Medical School

Other

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Oklahoma City, OK

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs +7.2 yrs vs City Avg

City Avg: 10.8 Yrs

State Avg: 14.2 Yrs

Regional Practice Density

685 Specialists

Practicing in Oklahoma City, OK (1911 Statewide)

Telehealth Adoption Rate

10.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

49.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Williams (18 Years) 18 Yrs

Oklahoma City Specialty Average (10.8 Years) 10.8 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	135	109	$146.35	$71.50
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	60	60	$180.83	$87.75
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)	52	49	$76.08	$40.55
87804 Detection test by immunoassay with direct visual observation for influenza virus	48	24	$29.00	$16.22
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	33	29	$29.06	$16.20
81002 Urinalysis, manual test	19	18	$6.00	$3.41
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	11	11	$23.00	$11.11

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	146	122	$125.00	$70.96
J1100 Injection, dexamethasone sodium phosphate, 1 mg	75	18	$5.00	$0.12
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	55	48	$30.00	$16.20
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	52	52	$190.00	$88.79
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)	41	38	$125.00	$40.55
87804 Detection test by immunoassay with direct visual observation for influenza virus	34	17	$25.00	$16.22
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	33	19	$35.00	$11.09
87400 Detection test for Influenza virus, A or B	26	12	$25.00	$13.85
81002 Urinalysis, manual test	21	19	$15.00	$3.41
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	16	15	$190.00	$101.22
J1030 Injection, methylprednisolone acetate, 40 mg	16	13	$15.00	$7.72
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	15	14	$125.00	$34.62

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	96	84	$125.00	$70.97
J1100 Injection, dexamethasone sodium phosphate, 1 mg	60	15	$5.00	$0.11
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	57	55	$125.00	$41.89
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	54	54	$190.00	$88.40
87804 Detection test by immunoassay with direct visual observation for influenza virus	52	26	$25.00	$16.29
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	51	48	$30.00	$16.26
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	32	19	$35.00	$10.59
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	28	28	$190.00	$102.28
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)	23	23	$125.00	$40.77
81000 Manual urinalysis test with examination using microscope, non-automated	12	12	$25.00	$3.97
99202 New patient office or other outpatient visit, typically 20 minutes	12	12	$130.00	$57.84
J1030 Injection, methylprednisolone acetate, 40 mg	11	11	$15.00	$6.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	117	102	$125.00	$73.54
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	57	55	$125.00	$45.23
J1100 Injection, dexamethasone sodium phosphate, 1 mg	44	11	$9.09	$0.14
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)	44	43	$125.00	$41.38
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	41	41	$190.00	$90.39
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	35	32	$80.00	$44.91
99202 New patient office or other outpatient visit, typically 20 minutes	33	33	$130.00	$58.41
81000 Manual urinalysis test with examination using microscope, non-automated	30	25	$25.00	$4.02
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	27	25	$30.00	$16.53
87428 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza	17	16	$150.00	$73.49
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	14	14	$35.00	$11.29

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	222	205	$124.32	$45.23
99202 New patient office or other outpatient visit, typically 20 minutes	112	112	$129.73	$61.35
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	79	79	$189.18	$87.08
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	79	69	$190.00	$87.91
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	40	37	$80.00	$36.43
99213 Established patient office or other outpatient visit, typically 15 minutes	38	38	$125.00	$60.62
87804 Detection test by immunoassay with direct visual observation for influenza virus	26	13	$26.92	$16.32
81000 Manual urinalysis test with examination using microscope, non-automated	19	19	$25.00	$3.98
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	18	16	$30.00	$16.35

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	142	124	$190.00	$87.53
J1100 Injection, dexamethasone sodium phosphate, 1 mg	43	13	$5.00	$0.13
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	40	40	$190.00	$87.23
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	36	35	$31.22	$16.20
81000 Manual urinalysis test with examination using microscope, non-automated	29	25	$22.76	$3.94
87804 Detection test by immunoassay with direct visual observation for influenza virus	24	12	$25.00	$16.22
99213 Established patient office or other outpatient visit, typically 15 minutes	22	20	$125.95	$59.51
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	18	17	$35.00	$13.27
69209 Removal of impacted ear wax by washing	13	13	$20.92	$11.15
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$218.18	$133.69

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	91	71	$190.00	$83.73
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	45	45	$190.00	$84.93
81000 Manual urinalysis test with examination using microscope, non-automated	26	22	$20.00	$3.94
99213 Established patient office or other outpatient visit, typically 15 minutes	24	23	$128.00	$57.41
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	23	20	$34.00	$15.50
87502 Detection test by nucleic acid for multiple types influenza virus	21	21	$175.00	$98.06
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	12	11	$35.00	$14.53
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$220.00	$130.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	72	55	$190.00	$82.52
87804 Detection test by immunoassay with direct visual observation for influenza virus	24	12	$26.67	$16.11
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	24	24	$190.00	$84.53
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	23	23	$220.00	$129.42
81000 Manual urinalysis test with examination using microscope, non-automated	18	13	$20.00	$3.88
99213 Established patient office or other outpatient visit, typically 15 minutes	18	17	$128.00	$57.01
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	16	16	$34.00	$16.11

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License OK 1793

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.

Hospital & Practice Group Affiliations

Advance Physicians Group

7807 S Walker Ave, Oklahoma City, OK 731399470

Phone: 4056360767

Advance Physicians Group

4510 Nw 39th St, Oklahoma City, OK 731222503

Phone: 4054955841

Advance Physicians Group

2100 W Lindsey St, Norman, OK 730694108

Phone: 4057594300

Practice Associates & Co-Workers

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

5 Associated Practitioners

Dr. Todd Farris , DC

Chiropractor

NPI 1083706824

Doctor of Chiropractic

Dr. Ronald Brown , DC

Chiropractor

NPI 1417157462

Doctor of Chiropractic

Natalie Green , PA

Physician Assistant

NPI 1538308531

Physician Assistant

Allyson Kraker , PA-C

Physician Assistant - Medical

NPI 1740518182

Physician Assistant (Certified)

Anna Cottle

Nurse Practitioner - Adult Health

NPI 1851691059

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active January 27, 2009

NPI status registered as active in NPPES database

📍

Updated Practice Location January 27, 2009

Registered at 1801 N BROADWAY AVE, OKLAHOMA CITY, OK 731033446 (Tel: 4055281936)

📍

Updated Business Mailing Address January 27, 2009

Registered at 1801 N BROADWAY AVE, OKLAHOMA CITY, OK 731033446

👤

Provider Name / Credentials Updated January 27, 2009

Recorded as KATHERINE WILLIAMS, P.A.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 27, 2009

Physician Assistant (License #1793 in OK)

🟢

Initial NPI Registration & Enumeration January 27, 2009

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: 1013155126

Entity Type:

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

Enumeration Date: January 27, 2009

Last Update: January 27, 2009

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1801 N Broadway Ave

Oklahoma City, OK 731033446

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.