Dr. William H Gentry , MD
Surgery • Red Bluff, CA
430 Rio St
Red Bluff, CA 960803417
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on October 11, 2006; this date does not establish years in practice.
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Published CMS data list 277 Original Medicare Part B services in 2020.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020. Published rows only; this is not a quality measure.
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Published Part B service records, 2020:
- 99213 — Established patient outpatient office visit: 90 service units.
- 99214 — Established patient outpatient office visit: 47 service units.
- 45385 — Removal of polyps or growths of large bowel using an endoscope with mechanical snare: 38 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2019 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2020). CPT notice
See all 8 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 13 Medicare Part D prescriptions, including refills, in 2021.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Published rows only; this is not a quality measure.
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Published Part D records, 2021:
- Famotidine — 13 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2021. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 368 in 2017 to 277 in 2020.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2020.
Practice Location & Contact Primary Location
430 Rio St
Red Bluff, CA 960803417
What Public CMS Data Show
Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $38,298 in 2020
The total amount Medicare approved for these services in 2020. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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, 2020.
Paid by Medicare
About $29,022 in 2020
The part of the Medicare-allowed amount that Medicare itself paid in 2020, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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, 2020.
30-day fills
16 standardized 30-day fills in 2021
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
$204 in 2021
The total cost of these prescriptions in 2021, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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, 2021.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019–2025.
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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?”
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.
Compared with the same specialty in Red Bluff and California
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Gentry are from 2020.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Gentry are from 2021.
7 active clinicians are listed under Surgery with a practice address in Red Bluff, CA (3,120 in California).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 25% from 368 in 2017 to 277 in 2020.
- 2017: 368
- 2018: 402
- 2019: 419
- 2020: 277
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Medicare-allowed amount
Medicare-allowed amount decreased 19% from $47,516 in 2017 to $38,298 in 2020.
- 2017: $47,516
- 2018: $50,414
- 2019: $56,725
- 2020: $38,298
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Paid by Medicare
Paid by Medicare decreased 17% from $34,786 in 2017 to $29,022 in 2020.
- 2017: $34,786
- 2018: $39,059
- 2019: $41,339
- 2020: $29,022
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 84% from 79 in 2017 to 13 in 2021.
- 2017: 79
- 2018: 143
- 2019: 150
- 2020: 119
- 2021: 13
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30-day fills
30-day fills decreased 82% from 89 in 2017 to 16 in 2021.
- 2017: 89
- 2018: 176
- 2019: 184
- 2020: 160
- 2021: 16
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Part D drug cost
Part D drug cost decreased 83% from $1,194 in 2017 to $204 in 2021.
- 2017: $1,194
- 2018: $1,857
- 2019: $5,890
- 2020: $3,412
- 2021: $204
Sources: CMS Medicare Physician & Other Practitioners (2020), CMS Medicare Part D Prescribers (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2019 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, 2017–2020; 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 |
|---|---|---|---|---|
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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90 | 71 | $87.75 | $78.19 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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47 | 44 | $127.49 | $113.41 |
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45385
Removal of polyps or growths of large bowel using an endoscope with mechanical snare
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38 | 38 | $293.97 | $264.29 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
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28 | 28 | $189.78 | $170.41 |
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G0105
Colorectal cancer screening; colonoscopy on individual at high risk
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22 | 22 | $215.15 | $191.61 |
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G0121
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
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20 | 20 | $212.11 | $192.98 |
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43239
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
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18 | 18 | $159.33 | $108.34 |
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43235
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope
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14 | 14 | $140.74 | $77.95 |
Source: CMS Part B by Provider and Service, 2020; 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 2021.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Famotidine | Famotidine | 13 | 484 | $203.94 | — |
Source: CMS Part D by Provider and Drug, 2021; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 208600000X
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Additional State Medicaid & Healthcare Payer Identifiers
Career & Practice History
NPI enumerated October 11, 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.
NPI Administrative Meta
Other Surgery Specialists in Red Bluff
- Dr. Nick Gabriel, DO
- James Gonzalez
- Dr. Eric Johnson, DO
- Dr. Kay Stephens, MD
- Dr. Dahlia Alspaugh, MD
Mailing Address
430 Rio St
Red Bluff, CA 960803417
Phone: 5305280801