Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

William Christopher Williams , PA-C

Physician Assistant • Tyler, TX

Active NPI 1093814949 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

1910 Roseland Blvd
Tyler, TX 75701

Call 9035330644 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1910 Roseland Blvd

Tyler, TX 75701

Telephone 9035330644
Fax 9035330441
Organization at the Same NPPES Address or Phone
Tyler Internal Medicine Associates, P.a. Facility NPI 1770695850

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Tyler Internal Medicine Associates, P.A. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Texas Tech University Health Science Center School Of Medicine

Graduation Year

2001

Medicare patients

1,070 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $508,204 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $400,123 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

14,748 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$841,604 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $848.79 across 51 records.

By nature of payment

  • Food and Beverage: $848.79 across 51 records.

Reporting-company totals (3 largest of 11)

  • Novo Nordisk Inc: $279.86 across 8 records.
  • ABBVIE INC.: $173.91 across 24 records.
  • Corcept Therapeutics: $125.86 across 3 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

25 years (graduated 2001)

CMS Doctors and Clinicians data list 2001 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

William Williams has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists William Williams as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Tyler and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Tyler, TX (2024, 66 clinicians with data). Median for this group: 376. Middle half: 164 to 966.

More Medicare Part B services than 95% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: 211. Middle half: 76 to 593.

Medicare-allowed amount

A higher Medicare-allowed amount than 90% of clinicians listed under Physician Assistant in Tyler, TX (2024, 66 clinicians with data). Median for this group: $26,434. Middle half: $10,594 to $57,835.

A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: $15,434. Middle half: $6,111 to $35,691.

Paid by Medicare

A higher Medicare payment amount than 90% of clinicians listed under Physician Assistant in Tyler, TX (2024, 66 clinicians with data). Median for this group: $19,779. Middle half: $7,945 to $41,751.

A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Texas (2024, 4,400 clinicians with data). Median for this group: $11,276. Middle half: $4,395 to $26,238.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Tyler, TX (2024, 54 clinicians with data). Median for this group: 423. Middle half: 89 to 1,556.

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Texas (2024, 4,882 clinicians with data). Median for this group: 261. Middle half: 73 to 938.

Part D drug cost

A higher Part D drug cost than 90% of clinicians listed under Physician Assistant in Tyler, TX (2024, 54 clinicians with data). Median for this group: $6,587. Middle half: $944 to $211,662.

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Texas (2024, 4,882 clinicians with data). Median for this group: $7,999. Middle half: $749 to $103,240.

98 active clinicians are listed under Physician Assistant with a practice address in Tyler, TX (11,008 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Tyler

6.1% of these 98 clinicians have the CMS telehealth indicator.

65.3% of these 98 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 51 records totaling $848.79.

Manufacturer Payment Nature Product Type Amount ($)
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $110.30
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $98.36
Corcept Therapeutics
Food and Beverage
In-kind items and services
Korlym General $45.11
Corcept Therapeutics
Food and Beverage
In-kind items and services
Korlym General $40.38
Corcept Therapeutics
Food and Beverage
In-kind items and services
Korlym General $40.37
Novo Nordisk Inc
Food and Beverage
In-kind items and services
— General $22.82
Bayer Healthcare Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
Kerendia General $21.66
Eli Lilly and Company
Food and Beverage
In-kind items and services
ZEPBOUND General $19.94
Boehringer Ingelheim Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
JARDIANCE General $19.89
Axsome Therapeutics, Inc.
Food and Beverage
In-kind items and services
Symbravo General $19.55
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $18.44
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $18.26
Novo Nordisk Inc
Food and Beverage
In-kind items and services
— General $17.62
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $16.57
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $16.39
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $16.18
ABBVIE INC.
Food and Beverage
In-kind items and services
UBRELVY General $16.09
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $15.95
ABBVIE INC.
Food and Beverage
In-kind items and services
VRAYLAR General $15.90
Pfizer Inc.
Food and Beverage
In-kind items and services
VYNDAQEL General $15.11
Pfizer Inc.
Food and Beverage
In-kind items and services
NURTEC ODT General $14.82
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
Veozah General $14.67
ABBVIE INC.
Food and Beverage
In-kind items and services
UBRELVY General $14.37
ABBVIE INC.
Food and Beverage
In-kind items and services
LINZESS General $14.00
Novartis Pharmaceuticals Corporation
Food and Beverage
In-kind items and services
LEQVIO General $13.97

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
4,622 489 $109.35 $60.14
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
690 388 $194.16 $103.56
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
600 392 $138.50 $73.56
36415 Insertion of needle into vein for collection of blood sample
273 233 $10.00 $8.65
80053 Blood test, comprehensive group of blood chemicals
255 227 $25.10 $10.35
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
252 226 $20.10 $7.61
J1100 Injection, dexamethasone sodium phosphate, 1 mg
226 53 $2.00 $0.11
84439 Thyroxine (thyroid chemical), free
209 205 $20.06 $8.84
84443 Blood test, thyroid stimulating hormone (tsh)
207 203 $35.09 $16.46
80061 Blood test, lipids (cholesterol and triglycerides)
206 205 $30.03 $13.12
83036 Hemoglobin a1c level
205 204 $25.01 $9.52
82306 Vitamin d-3 level
196 196 $60.08 $29.01
82607 Cyanocobalamin (vitamin b-12) level
195 192 $31.03 $14.78
81000 Manual urinalysis test with examination using microscope, non-automated
191 176 $11.32 $3.94
82043 Urine microalbumin (protein) level
174 173 $15.09 $5.66
J0696 Injection, ceftriaxone sodium, per 250 mg
140 31 $9.89 $0.44
J2785 Injection, regadenoson, 0.1 mg
128 32 $75.00 $2.87
84403 Testosterone (hormone) level, total
124 117 $50.00 $25.29
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
119 71 $120.45 $86.70
84153 Psa (prostate specific antigen) measurement, total
115 110 $40.00 $18.02
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
115 108 $26.84 $13.39
82570 Creatinine level to test for kidney function or muscle injury
92 92 $15.00 $5.08
83540 Iron level
85 85 $20.01 $6.34
83550 Iron binding capacity
85 85 $20.06 $8.57
82728 Ferritin (blood protein) level
84 84 $30.06 $13.36

(top 25 shown)

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Alprazolam Alprazolam 405 13,643 $2,777.57 113
Rosuvastatin Calcium Rosuvastatin Calcium 300 26,003 $4,359.59 107
Levothyroxine Sodium Levothyroxine Sodium 282 23,960 $2,854.47 94
Ozempic Semaglutide 270 9,782 $305,849.43 55
Tramadol Hcl Tramadol Hcl 267 6,882 $2,034.96 73
Methylprednisolone Methylprednisolone 192 1,152 $1,204.43 166
Temazepam Temazepam 176 6,910 $2,141.56 45
Amlodipine Besylate Amlodipine Besylate 173 14,577 $1,421.02 66
Zolpidem Tartrate Zolpidem Tartrate 158 8,537 $1,210.15 54
Losartan Potassium Losartan Potassium 155 12,661 $1,900.32 52
Lorazepam Lorazepam 135 4,062 $1,067.92 37
Atorvastatin Calcium Atorvastatin Calcium 132 11,460 $1,698.67 50
Mounjaro Tirzepatide 131 5,150 $175,136.53 33
Azithromycin Azithromycin 128 640 $526.10 112
Potassium Chloride Potassium Chloride 127 9,714 $2,648.75 56
Testosterone Cypionate Testosterone Cypionate 127 9,015 $7,404.56 79
Acetaminophen-Codeine Acetaminophen With Codeine 117 3,005 $3,477.08 41
Gabapentin Gabapentin 113 7,098 $1,388.53 38
Pregabalin Pregabalin 112 5,393 $2,505.14 45
Omeprazole Omeprazole 104 9,292 $2,221.87 43
Carvedilol Carvedilol 102 8,728 $1,150.04 46
Esomeprazole Magnesium Esomeprazole Magnesium 100 8,790 $3,929.20 43
Olmesartan Medoxomil Olmesartan Medoxomil 94 7,560 $2,137.46 33
Clonazepam Clonazepam 93 3,807 $767.10 26
Eliquis Apixaban 90 5,135 $93,915.98 28

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES TX PA03260

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Other Identifier Bcbs
8N7865 (TX)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20050111000226

Enrollment State Jurisdiction

TX

PECOS Control ID

8123076726

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Tyler Internal Medicine Associates, P.a

1910 Roseland Blvd, Tyler, TX 757014246

Phone: 9035330644

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

17 listed
Dr. C. Branch , DO

Family Medicine

NPI 1205814753

Doctor of Osteopathic Medicine (D.O.)

Slade Braswell , FNP-C

Nurse Practitioner - Family

NPI 1922512839

Family Nurse Practitioner (Certified)

Dr. Thomas Buzbee , MD

Internal Medicine

NPI 1770682619

Doctor of Medicine (M.D.)

Blaise Davis , FNP-C, FNP-BC

Nurse Practitioner - Family

NPI 1114671500

Family Nurse Practitioner (Certified), Family Nurse Practitioner (Board Certified)

Dr. Margaret Hayden , MD

Internal Medicine

NPI 1447359385

Doctor of Medicine (M.D.)

Shari Howard , NURSE PRACTITIONER

Nurse Practitioner - Primary Care

NPI 1760791370

NURSEPRACTITIONER

Career & Practice History

NPI enumerated September 21, 2006.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1093814949
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 21, 2006
Last Update: November 03, 2016
Sole Proprietor: No

Other Physician Assistants in Tyler

All Physician Assistants in Tyler

Mailing Address

1910 Roseland Blvd

Tyler, TX 75701

Phone: 9035330644

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.