2026 NPPES data Internal Medicine Physician NPI 1447810544 MD
Verify on CMS →

BENJAMIN GANDESBERY, MD

Internal Medicine Physician in TUBA CITY, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 212 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
75%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
70.5849/100
▼ 13 pts below national avg 83.1 · [object Object]

What the federal data shows

BENJAMIN GANDESBERY, MD reported a CMS MIPS final score of 70.5849/100 — below the 83.1 national average — and filed 2,574 Medicare Part D claims in 2023.

70.5849/100
MIPS score · -13 vs avg
3K
Part D claims, 2023
75%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

BENJAMIN GANDESBERY, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

71 8th percentile higher than 8% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

BENJAMIN GANDESBERY, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about BENJAMIN GANDESBERY, MD?

Below national average

NPI registry status

Active

Issued 06/20/2019

NPI 1447810544

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,574 5% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

70.5849/100 12.51509999999999% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Arizona

How Internal Medicine Physician compares to other specialties among Arizona providers

Arizona providers

Internal Medicine Physician share within Arizona

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Arizona

Medicare quality performance — MIPS

BENJAMIN GANDESBERY, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

Below national average
MIPS Final Score
70.5849/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 70.5849/100 vs national avg 83.1

0%100%National avg83%70.6%
MIPS final score (Internal Medicine Physician) — 70.5849/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

BENJAMIN GANDESBERY, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 167 NORTH MAIN ST, TUBA CITY, AZ, 86045, with a listed phone of (866) 976-5941. NPI 1447810544 was issued on 06/20/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GANDESBERY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 2,574 prescription claims written by this provider, covering 212 Medicare beneficiaries and totaling roughly $417K in drug spend, split 25% brand-name and 75% generic by claim count, with an opioid prescribing rate of 1.6%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 70.5849/100 for the 2023 performance year (Quality 39.6808, Cost 63.1023), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

167 NORTH MAIN ST
TUBA CITY, AZ 86045

Provider Details

NPI 1447810544
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/20/2019

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

70.5849
Final Score
Avg: 83.1
39.6808
Quality
63.1023
Cost
79
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where BENJAMIN GANDESBERY, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

TUBA CITY REGIONAL HEALTH CARE CORPORATION
TUBA CITY, AZ
Acute Care Hospitals
CMS CCN: 030073

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

BENJAMIN GANDESBERY, MD — brand share 25.0%
Specialty average (est.)

25% brand-name claims vs 75% generic, on 2,574 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

2,574
Total Claims
$417K
Total Drug Cost
212
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,753
Total Day Supply
79,603
Brand vs Generic
25% brand / 75% generic
Brand Drug Cost
$371K
Generic Drug Cost
$44K
Opioid Claims
40 (1.6% rate)
Antibiotic Claims
39

Patient Demographics

Average Patient Age
71.4 years
Avg HCC Risk Score
1.99
Gender Split
53% female / 47% male
Age Distribution
<65: 39, 65-74: 88, 75-84: 58, 85+: 27

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What BENJAMIN GANDESBERY, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Lisinopril
168
Atorvastatin Calcium
159
Jardiance
Empagliflozin
132
Losartan Potassium
116
Metformin Hcl Er
Metformin Hcl
101
Amlodipine Besylate
100
Tamsulosin Hcl
76
Metformin Hcl
75
Finasteride
73
Rosuvastatin Calcium
71

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How BENJAMIN GANDESBERY, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

BENJAMIN GANDESBERY, MD's 2,574 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as GANDESBERY.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BENJAMIN GANDESBERY, MD's specialty?
BENJAMIN GANDESBERY, MD specializes in Internal Medicine Physician and practices in TUBA CITY, Arizona. Credentials: MD.
How much does BENJAMIN GANDESBERY, MD prescribe under Medicare Part D?
In 2023, BENJAMIN GANDESBERY, MD wrote 2,574 Medicare Part D claims totaling $417K in drug costs for 212 beneficiaries.
What is BENJAMIN GANDESBERY, MD's Medicare quality score?
BENJAMIN GANDESBERY, MD has a CMS MIPS Final Score of 70.5849/100 (Quality: 39.6808, Cost: 63.1023). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is BENJAMIN GANDESBERY, MD located?
BENJAMIN GANDESBERY, MD is located at 167 NORTH MAIN ST, TUBA CITY, AZ, 86045. Phone: (866) 976-5941.
What is BENJAMIN GANDESBERY, MD's NPI number?
BENJAMIN GANDESBERY, MD's National Provider Identifier (NPI) is 1447810544, issued on 06/20/2019.
Does BENJAMIN GANDESBERY, MD prescribe more brand-name or generic drugs?
BENJAMIN GANDESBERY, MD's prescribing is 25% brand-name and 75% generic drugs by claim count, with $371K in brand drug costs.
Does BENJAMIN GANDESBERY, MD prescribe opioids?
Yes, BENJAMIN GANDESBERY, MD had 40 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does BENJAMIN GANDESBERY, MD prescribe most often?
Based on 2023 Medicare Part D data, BENJAMIN GANDESBERY, MD's most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Jardiance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BENJAMIN GANDESBERY, MD accept Medicare?
BENJAMIN GANDESBERY, MD appears in CMS Medicare data with 2,574 Part D claims and 212 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BENJAMIN GANDESBERY, MD's credentials?
BENJAMIN GANDESBERY, MD's NPI is 1447810544 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology