Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Robert Tyson Keller , MD

Internal Medicine • Fort Worth, TX

Active NPI 1962445346 Individual Practitioner Male Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

724 Pennsylvania Ave
Fort Worth, TX 761042221

Call 8173361200 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

724 Pennsylvania Ave

Fort Worth, TX 761042221

Telephone 8173361200
Fax 8177326597
Organization at the Same NPPES Address or Phone
Gregory Phillips Facility NPI 1720414881

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

NPPES lists 1 additional practice-address record in Fort Worth, TX. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 2 distinct group names: Fort Worth Medical Specialists Pllc; Ppg Health Pa. 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

University Of Southern California Keck School Of Medicine

Graduation Year

1982

Medicare patients

338 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 $203,093 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 $155,841 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

28,764 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

$926,394 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: $2,365.29 across 57 records.

By nature of payment

  • Food and Beverage: $2,365.29 across 57 records.

Reporting-company totals (3 largest of 17)

  • AstraZeneca Pharmaceuticals LP: $418.94 across 5 records.
  • Novo Nordisk Inc: $282.16 across 4 records.
  • GlaxoSmithKline, LLC.: $274.70 across 5 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

44 years (graduated 1982)

CMS Doctors and Clinicians data list 1982 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

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

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)

Dr. Keller 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 Dr. Keller 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 Fort Worth and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 90% of clinicians listed under Internal Medicine in Fort Worth, TX (2024, 283 clinicians with data). Median for this group: 605. Middle half: 379 to 908.

More Medicare Part B services than 85% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: 645. Middle half: 277 to 1,322.

Medicare-allowed amount

A higher Medicare-allowed amount than 95% of clinicians listed under Internal Medicine in Fort Worth, TX (2024, 283 clinicians with data). Median for this group: $58,864. Middle half: $39,512 to $90,448.

A higher Medicare-allowed amount than 85% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $61,221. Middle half: $27,420 to $115,826.

Paid by Medicare

A higher Medicare payment amount than 95% of clinicians listed under Internal Medicine in Fort Worth, TX (2024, 283 clinicians with data). Median for this group: $45,100. Middle half: $30,553 to $69,767.

A higher Medicare payment amount than 85% of clinicians listed under Internal Medicine in Texas (2024, 5,423 clinicians with data). Median for this group: $47,501. Middle half: $20,446 to $90,051.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Internal Medicine in Fort Worth, TX (2024, 270 clinicians with data). Median for this group: 252. Middle half: 80 to 3,137.

More Part D prescriptions than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: 828. Middle half: 121 to 4,824.

Part D drug cost

A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Fort Worth, TX (2024, 270 clinicians with data). Median for this group: $15,349. Middle half: $743 to $262,204.

A higher Part D drug cost than 90% of clinicians listed under Internal Medicine in Texas (2024, 5,674 clinicians with data). Median for this group: $64,859. Middle half: $4,211 to $436,775.

389 active clinicians are listed under Internal Medicine with a practice address in Fort Worth, TX (9,191 in Texas).

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

Telehealth indicator in Fort Worth

17.7% of these 389 clinicians have the CMS telehealth indicator.

74.8% of these 389 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): 57 records totaling $2,365.29.

Manufacturer Payment Nature Product Type Amount ($)
Dexcom, Inc.
Food and Beverage
In-kind items and services
DEXCOM G7 GSS (161) General $149.71
Astellas Pharma US Inc
Food and Beverage
In-kind items and services
Veozah General $127.46
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $124.14
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
FASENRA General $123.68
Amgen Inc.
Food and Beverage
In-kind items and services
EVENITY General $123.43
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
Food and Beverage
In-kind items and services
CAPLYTA General $118.68
Eli Lilly and Company
Food and Beverage
Cash or cash equivalent
ZEPBOUND General $118.68
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
AREXVY General $117.81
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
AREXVY General $117.71
Phathom Pharmaceuticals, Inc.
Food and Beverage
Cash or cash equivalent
VOQUEZNA General $116.67
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $114.23
Eli Lilly and Company
Food and Beverage
Cash or cash equivalent
JARDIANCE General $112.73
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
BREZTRI General $93.94
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $93.36
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $93.25
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $29.97
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
Food and Beverage
In-kind items and services
CAPLYTA General $26.23
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
Food and Beverage
In-kind items and services
CAPLYTA General $24.64
Axsome Therapeutics, Inc.
Food and Beverage
In-kind items and services
Auvelity General $23.12
Lundbeck LLC
Food and Beverage
Cash or cash equivalent
REXULTI General $23.02
Azurity Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
EDARBI General $22.77
Viatris Specialty LLC
Food and Beverage
In-kind items and services
YUPELRI General $22.46
Sumitomo Pharma America, Inc.
Food and Beverage
In-kind items and services
GEMTESA General $22.00
Azurity Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
EDARBI General $21.11
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
TRELEGY ELLIPTA General $20.40

(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
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
786 97 $154.17 $63.49
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
637 266 $308.25 $125.73
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
194 116 $223.08 $82.69
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
158 158 $351.29 $134.07
90471 Administration of vaccine
97 93 $50.00 $20.64
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month
82 47 $115.00 $47.11
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
78 32 $284.86 $76.69
99496 Transitional care management services for problem of high complexity
34 30 $700.00 $277.58
20610 Aspiration and/or injection of fluid from large joint
28 16 $162.50 $67.16
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
20 13 $197.35 $48.08
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
18 18 $499.79 $168.01
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
18 11 $383.67 $115.31
99238 Hospital discharge day management, 30 minutes or less
16 16 $292.38 $79.03
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional
14 12 $60.00 $23.80
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and
14 13 $126.95 $54.36
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
12 12 $313.62 $167.76
99495 Transitional care management services for problem of at least moderate complexity
12 11 $456.53 $189.69

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
Atorvastatin Calcium Atorvastatin Calcium 1,039 93,630 $9,493.98 308
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 555 14,803 $18,198.17 81
Levothyroxine Sodium Levothyroxine Sodium 451 38,603 $5,088.41 122
Amlodipine Besylate Amlodipine Besylate 446 40,978 $3,230.74 138
Lisinopril Lisinopril 386 34,331 $3,262.43 117
Losartan Potassium Losartan Potassium 290 26,174 $2,962.44 91
Pantoprazole Sodium Pantoprazole Sodium 284 24,632 $3,879.50 97
Gabapentin Gabapentin 277 19,714 $6,775.75 84
Metformin Hcl Metformin Hcl 261 23,060 $2,503.37 77
Duloxetine Hcl Duloxetine Hcl 247 17,786 $5,934.56 80
Rosuvastatin Calcium Rosuvastatin Calcium 228 20,775 $2,060.97 73
Tramadol Hcl Tramadol Hcl 227 6,249 $2,208.97 52
Boostrix Tdap Diphth,pertuss(Acell),tet Vac 207 1,338 $14,444.30 201
Carvedilol Carvedilol 202 18,148 $1,521.35 69
Escitalopram Oxalate Escitalopram Oxalate 201 13,668 $1,810.51 54
Lisinopril-Hydrochlorothiazide Lisinopril/Hydrochlorothiazide 198 18,170 $1,325.62 63
Omeprazole Omeprazole 186 16,680 $4,278.68 56
Trazodone Hcl Trazodone Hcl 185 14,975 $1,814.12 53
Eliquis Apixaban 185 10,725 $200,920.45 47
Acetaminophen-Codeine Acetaminophen With Codeine 183 4,454 $3,712.34 36
Metoprolol Succinate Metoprolol Succinate 181 14,208 $2,292.87 52
Montelukast Sodium Montelukast Sodium 175 15,055 $2,288.47 56
Losartan-Hydrochlorothiazide Losartan/Hydrochlorothiazide 170 14,223 $2,347.36 48
Furosemide Furosemide 148 12,364 $882.95 54
Tamsulosin Hcl Tamsulosin Hcl 128 11,730 $1,495.41 43

(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

Self-certified to NPPES: 2026-03-30
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES TX H4975

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.

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

Medicaid ID
135403709 (TX)
Medicaid ID
172324901 (TX)
Other Identifier Individual
8P9720 (TX)
Other Identifier Individual
P00149356 (TX)
Other Identifier Rr Group
DC1238 (TX)
Other Identifier Bc Group
0063LZ (TX)

Medicare (PECOS) Enrollment & Ordering Eligibility

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

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20040414001380

Enrollment State Jurisdiction

TX

PECOS Control ID

9739173394

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

Ppg Health Pa

909 9th Ave, Fort Worth, TX 761043932

Phone: 8177257880

Fort Worth Medical Specialists Pllc

724 Pennsylvania Ave, Fort Worth, TX 761042221

Phone: 8173361200

Secondary Practice Locations

909 9th Ave Ste 400

Fort Worth, TX 761043932

Phone: 8177257880

Clinicians Sharing This Practice Address or Phone

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

3 listed
Dr. Gregory Phillips , MD

Internal Medicine

NPI 1699705152

Doctor of Medicine (M.D.)

Lacy Voth , PA-C

Physician Assistant

NPI 1578995379

Physician Assistant (Certified)

Rebecca Wolverton , FNP-C

Nurse Practitioner - Family

NPI 1063870087

Family Nurse Practitioner (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

7 Historical Events
📍
Updated Practice Location March 23, 2021

Registered at 724 PENNSYLVANIA AVE, FORT WORTH, TX 761042221 (Tel: 8173361200)

âś…
NPI Profile Active February 05, 2010

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) February 05, 2010

Registered at 301 CLIFFORD CENTER DR, SUITE 115, FORT WORTH, TX 761084443 (Tel: 8177376552)

📍
Business Mailing Address (Initial Record) February 05, 2010

Registered at 301 CLIFFORD CENTER DR, SUITE 115, FORT WORTH, TX 761084443 (Tel: 8177376552)

👤
Provider Name / Credentials (Initial Record) February 05, 2010

Recorded as ROBERT KELLER, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 05, 2010

Internal Medicine (license number reported to NPPES: TX H4975)

🟢
Initial NPI Registration & Enumeration June 14, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1962445346
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 14, 2006
Last Update: March 30, 2026
Sole Proprietor: No

Other Internal Medicine Providers in Fort Worth

All Internal Medicine Providers in Fort Worth

Mailing Address

301 Clifford Center Dr, Suite 115

Fort Worth, TX 761084443

Phone: 8177376552

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.