2026 NPPES data Gastroenterology Physician NPI 1720420557 D.O.
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SARA ANCELLO, D.O.

Gastroenterology Physician in MESA, 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
859
Medicare Part D claims · 288 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$985.09
60 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SARA ANCELLO, D.O. filed 859 Medicare Part D claims in 2023 as a Gastroenterology Physician in MESA, Arizona, prescribing 82% generic.

859
Part D claims, 2023
82%
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.

SARA ANCELLO, D.O.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

859 Top 27% higher than 73% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

SARA ANCELLO, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 SARA ANCELLO, D.O.?

Quality data not reported

NPI registry status

Active

Issued 07/22/2013

NPI 1720420557

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

859 3% vs specialty avg

2023 prescription claims

Specialty avg: 833

Specialty distribution in Arizona

How Gastroenterology Physician compares to other specialties among Arizona providers

Arizona providers

Gastroenterology Physician share within Arizona

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

Specialty board-certification context

Estimated specialty board-certified rate — Gastroenterology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gastroenterology Physician ABMS/AOA estimate

Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gastroenterology Physician) — ABMS / AOA estimate

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).

SARA ANCELLO, D.O. is a Gastroenterology Physician provider practicing in MESA, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1720420557. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SARA ANCELLO, D.O. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding D.O. credentials at 3638 E SOUTHERN AVE STE C101, MESA, AZ, 85206, with a listed phone of (480) 564-3763. NPI 1720420557 was issued on 07/22/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ANCELLO 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 859 prescription claims written by this provider, covering 288 Medicare beneficiaries and totaling roughly $173K in drug spend, split 18% brand-name and 82% generic by claim count. 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.

Gastroenterology Physician is a mid-sized specialty nationwide, with 16,567 enrolled providers across 54 states and an average of 833 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

3638 E SOUTHERN AVE STE C101
MESA, AZ 85206

Provider Details

NPI 1720420557
Specialty Gastroenterology Physician
Credentials D.O.
Gender Female
NPI Issued 07/22/2013

Hospital and facility affiliations

Facilities where SARA ANCELLO, D.O. 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.

ARIZONA GASTROINTESTINAL ASSOCIATES PLC
SCOTTSDALE, AZ
CENTRAL ARIZONA MEDICAL ASSOCIATES PC
MESA, AZ

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for SARA ANCELLO, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$985

Largest payer

ABBVIE INC.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

SARA ANCELLO, D.O. — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 859 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.

859
Total Claims
$173K
Total Drug Cost
288
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,346
Total Day Supply
35,592
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$143K
Generic Drug Cost
$30K
Antibiotic Claims
24

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
1.50
Gender Split
75% female / 25% male
Age Distribution
<65: 29, 65-74: 146, 75-84: 94, 85+: 19

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pantoprazole Sodium
209
Famotidine
95
Omeprazole
77
Colestipol Hcl
40
Sucralfate
21
Linzess
Linaclotide
20
Dicyclomine Hcl
17
Budesonide Dr
Budesonide
15
Lactulose
15
Prednisone
14

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

Gastroenterology Physician Overview

How SARA ANCELLO, D.O. fits within the Gastroenterology Physician landscape nationally.

16,567
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider

SARA ANCELLO, D.O.'s 859 claims are above the specialty average of 833.

Nearby Gastroenterology Physician Providers in Arizona

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

Compare Gastroenterology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SARA ANCELLO, D.O.'s specialty?
SARA ANCELLO, D.O. specializes in Gastroenterology Physician and practices in MESA, Arizona. Credentials: D.O..
How much does SARA ANCELLO, D.O. prescribe under Medicare Part D?
In 2023, SARA ANCELLO, D.O. wrote 859 Medicare Part D claims totaling $173K in drug costs for 288 beneficiaries.
Where is SARA ANCELLO, D.O. located?
SARA ANCELLO, D.O. is located at 3638 E SOUTHERN AVE STE C101, MESA, AZ, 85206. Phone: (480) 564-3763.
What is SARA ANCELLO, D.O.'s NPI number?
SARA ANCELLO, D.O.'s National Provider Identifier (NPI) is 1720420557, issued on 07/22/2013.
Does SARA ANCELLO, D.O. prescribe more brand-name or generic drugs?
SARA ANCELLO, D.O.'s prescribing is 18% brand-name and 82% generic drugs by claim count, with $143K in brand drug costs.
How many Gastroenterology Physician providers are there in the US?
There are 16,567 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does SARA ANCELLO, D.O. prescribe most often?
Based on 2023 Medicare Part D data, SARA ANCELLO, D.O.'s most frequently prescribed drugs include Pantoprazole Sodium, Famotidine, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SARA ANCELLO, D.O. accept Medicare?
SARA ANCELLO, D.O. appears in CMS Medicare data with 859 Part D claims and 288 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SARA ANCELLO, D.O.'s credentials?
SARA ANCELLO, D.O.'s NPI is 1720420557 with credentials D.O.. 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.
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