Active NPI 1013974575 Individual Practitioner Female Practitioner

Katherine M. Tjaden , PA-C

Physician Assistant • Ames, IA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Katherine Tjaden, PA-C is a certified Physician Assistant practicing in Ames, IA. With approximately 15 years of clinical experience since completing medical education in 2011, Katherine Tjaden delivers high-quality medical care to the local community at 3800 LINCOLN WAY.

Katherine Tjaden is affiliated with Mcfarland Clinic Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, bacterial colony count, urine, urinalysis, manual test. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

3800 Lincoln Way

Ames, IA 500143402

Telephone 5159564100

Fax 5159564108

Medicare Profile & Education

Medical School

Other

Graduation Year

2011

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Ames, IA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

15 Yrs +0.5 yrs vs City Avg

City Avg: 14.5 Yrs

State Avg: 13.7 Yrs

Regional Practice Density

30 Specialists

Practicing in Ames, IA (1543 Statewide)

Telehealth Adoption Rate

6.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

45.1% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Tjaden (15 Years) 15 Yrs

Ames Specialty Average (14.5 Years) 14.5 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	179	170	$136.84	$70.81
87086 Bacterial colony count, urine	31	29	$31.00	$7.91
81002 Urinalysis, manual test	25	23	$12.00	$3.41
0241U Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected	21	21	$196.00	$139.78
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	14	13	$33.00	$8.48
87077 Bacterial culture for aerobic isolates	14	13	$31.00	$7.92
36415 Insertion of needle into vein for collection of blood sample	11	11	$10.00	$8.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	145	133	$133.00	$72.41
87086 Bacterial colony count, urine	34	31	$31.00	$7.91
81002 Urinalysis, manual test	30	27	$12.00	$3.41
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	22	21	$33.00	$8.48
87077 Bacterial culture for aerobic isolates	22	21	$31.00	$7.92
0241U Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected	16	16	$190.00	$139.78

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	126	120	$129.00	$73.08
87086 Bacterial colony count, urine	24	22	$31.00	$7.94
81002 Urinalysis, manual test	22	20	$11.00	$3.42
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	19	19	$86.00	$34.98
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	16	16	$78.00	$45.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	121	117	$126.00	$73.86
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	35	34	$84.00	$35.33
87086 Bacterial colony count, urine	26	25	$31.00	$8.07
87077 Bacterial culture for aerobic isolates	21	21	$31.00	$8.08
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	21	21	$33.00	$8.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	16	$187.00	$105.66
81002 Urinalysis, manual test	16	15	$10.50	$3.48
36415 Insertion of needle into vein for collection of blood sample	14	14	$9.50	$3.00
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	13	13	$28.00	$7.77
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	11	11	$75.73	$45.57

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	175	173	$183.00	$87.91
99441 Telephone medical discussion with physician, 5-10 minutes	87	85	$45.00	$36.77
99213 Established patient office or other outpatient visit, typically 15 minutes	62	60	$124.00	$60.02
36415 Insertion of needle into vein for collection of blood sample	57	56	$10.00	$2.99
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	52	52	$27.00	$7.74
87086 Bacterial colony count, urine	18	16	$30.00	$7.98
87077 Bacterial culture for aerobic isolates	14	13	$31.00	$7.99
87081 Screening test for pathogenic organisms	14	14	$25.00	$6.61
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep)	14	14	$38.00	$16.48
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	14	13	$33.00	$8.55
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus	12	12	$82.00	$35.33
81002 Urinalysis, manual test	12	11	$10.00	$3.43
80047 Blood test, basic group of blood chemicals (calcium, ionized)	11	11	$44.00	$13.73

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	138	135	$122.00	$58.84
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	34	34	$179.00	$85.42
87086 Bacterial colony count, urine	30	29	$30.00	$8.79
36415 Insertion of needle into vein for collection of blood sample	20	20	$10.00	$2.94
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	19	19	$26.00	$8.46
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	17	16	$33.00	$9.42
87077 Bacterial culture for aerobic isolates	17	16	$31.00	$8.79
81002 Urinalysis, manual test	15	14	$10.00	$3.41
81001 Manual urinalysis test with examination using microscope, automated	15	15	$12.00	$3.45
69210 Removal of impacted ear wax	11	11	$130.00	$37.88

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	57	55	$114.42	$57.66

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	116	109	$113.00	$57.64
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	37	35	$170.00	$83.15
36415 Insertion of needle into vein for collection of blood sample	20	18	$10.00	$2.94
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution	17	12	$32.00	$11.62
87086 Bacterial colony count, urine	17	12	$30.00	$10.85
87077 Bacterial culture for aerobic isolates	17	12	$31.00	$9.78
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	15	$73.00	$34.33
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	11	11	$24.00	$10.45

Medical Specialties & State Licenses

CMS Verified: 2024-02-22

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License IA 001576

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

0638536 (IA)

Commercial Insurance / Payer ID Medicare B

I12876 (IA)

Commercial Insurance / Payer ID Medicaid Hospital

0152082 (IA)

Hospital & Practice Group Affiliations

Mcfarland Clinic Pc

3800 Lincoln Way, Ames, IA 500143402

Phone: 5159564100

Mcfarland Clinic Pc

640 Lincoln Way, Ames, IA 500106911

Phone: 5159564051

Mcfarland Clinic Pc

1215 Duff Ave, Ames, IA 500105400

Phone: 5152394400

Mcfarland Clinic Pc

802 S Ctr St, Marshalltown, IA 501583350

Phone: 6418445200

Mcfarland Clinic Pc

1214 S Grant Rd, Carroll, IA 514013102

Phone: 7127921500

Mcfarland Clinic Pc

3500 University Blvd, Ames, IA 500103014

Phone: 5152393040

Practice Associates & Co-Workers

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

1 Associated Practitioners

John Mcclelland , PA-C

Physician Assistant

NPI 1649267907

Physician Assistant (Certified)

Career & Practice History Timeline

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

8 Historical Events

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 22, 2024

Physician Assistant (License #001576 in IA)

📍

Updated Practice Location December 17, 2020

Registered at 3800 LINCOLN WAY, AMES, IA 500143402 (Tel: 5159564100)

✅

NPI Profile Active September 07, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location September 07, 2012

Registered at 1015 DUFF AVE, MCFARLAND CLINIC PC, AMES, IA 500103014 (Tel: 5152394435)

📍

Updated Business Mailing Address September 07, 2012

Registered at PO BOX 3014, 1215 DUFF AVE MCFARLAND CLINIC PC, AMES, IA 500103014 (Tel: 5152394501)

👤

Provider Name / Credentials Updated September 07, 2012

Recorded as KATHERINE TJADEN, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) September 07, 2012

Physician Assistant (License #001576 in IA)

🟢

Initial NPI Registration & Enumeration April 28, 2006

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: 1013974575

Entity Type:

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

Enumeration Date: April 28, 2006

Last Update: February 22, 2024

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 3014, 1215 Duff Ave Mcfarland Clinic Pc

Ames, IA 500103014

Phone: 5152394501

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.