2026 NPPES data Gastroenterology Physician NPI 1073933941 D.O.
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JIMMY GIANG, D.O.

Gastroenterology Physician in GREELEY, Colorado. 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
659
Medicare Part D claims · 388 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
64.1553/100
▼ 19 pts below national avg 83.1 · [object Object]
Industry payments
$2.3K
103 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JIMMY GIANG, D.O. reported a CMS MIPS final score of 64.1553/100 — below the 83.1 national average — and filed 659 Medicare Part D claims in 2023.

64.1553/100
MIPS score · -19 vs avg
659
Part D claims, 2023
84%
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.

JIMMY GIANG, D.O.'s MIPS score vs every scored U.S. clinician

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

64 6th percentile higher than 6% 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%). This entry sits in this band. 70–80: 118,074 scored providers (25%). Above this entry. 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)

JIMMY GIANG, D.O. 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 JIMMY GIANG, D.O.?

Below national average

NPI registry status

Active

Issued 04/18/2014

NPI 1073933941

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

659 21% vs specialty avg

2023 prescription claims

Specialty avg: 833

MIPS final score

64.1553/100 18.944699999999997% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Colorado

How Gastroenterology Physician compares to other specialties among Colorado providers

Colorado providers

Gastroenterology Physician share within Colorado

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

Medicare quality performance — MIPS

JIMMY GIANG, D.O.'s 2023 MIPS final score plotted against the Gastroenterology Physician national average

Below national average
MIPS Final Score
64.1553/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gastroenterology Physician) — 64.1553/100 vs national avg 83.1

0%100%National avg83%64.2%
MIPS final score (Gastroenterology Physician) — 64.1553/100 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).

JIMMY GIANG, D.O. appears in the CMS NPPES registry as a Gastroenterology Physician provider holding D.O. credentials at 8225 W 20TH ST, GREELEY, CO, 80634, with a listed phone of (970) 378-1414. NPI 1073933941 was issued on 04/18/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GIANG 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 659 prescription claims written by this provider, covering 388 Medicare beneficiaries and totaling roughly $295K in drug spend, split 16% brand-name and 84% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 64.1553/100 for the 2023 performance year (Quality 67.5685, Cost 11.87), compared with the national average of 83.1.

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

8225 W 20TH ST
GREELEY, CO 80634

Provider Details

NPI 1073933941
Specialty Gastroenterology Physician
Credentials D.O.
Gender Male
NPI Issued 04/18/2014

CMS Quality Score (MIPS)

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

64.1553
Final Score
Avg: 83.1
67.5685
Quality
11.87
Cost
91
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JIMMY GIANG, 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.

CENTERS FOR GASTROENTEROLOGY
FORT COLLINS, CO

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 JIMMY GIANG, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$2.3K

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

JIMMY GIANG, D.O. — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 659 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.

659
Total Claims
$295K
Total Drug Cost
388
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
994
Total Day Supply
20,167
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$280K
Generic Drug Cost
$15K
Antibiotic Claims
26

Patient Demographics

Average Patient Age
69.8 years
Avg HCC Risk Score
1.19
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

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

What JIMMY GIANG, D.O. 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
Omeprazole
146
Peg 3350-Electrolyte
Sodium Chloride/Nahco3/Kcl/Peg
120
Famotidine
39
Pantoprazole Sodium
35
Dicyclomine Hcl
14
Gavilyte-C
"Peg3350/Sod Sulf
N/A
Gavilyte-G
"Peg3350/Sod Sulf
N/A
Peg-3350 And Electrolytes
"Peg3350/Sod Sulf
N/A
Sod Sulf-Potass Sulf-Mag Sulf
"Sodium
N/A

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

Gastroenterology Physician Overview

How JIMMY GIANG, 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

JIMMY GIANG, D.O.'s 659 claims are below the specialty average of 833.

Nearby Gastroenterology Physician Providers in Colorado

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

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

Frequently Asked Questions

What is JIMMY GIANG, D.O.'s specialty?
JIMMY GIANG, D.O. specializes in Gastroenterology Physician and practices in GREELEY, Colorado. Credentials: D.O..
How much does JIMMY GIANG, D.O. prescribe under Medicare Part D?
In 2023, JIMMY GIANG, D.O. wrote 659 Medicare Part D claims totaling $295K in drug costs for 388 beneficiaries.
What is JIMMY GIANG, D.O.'s Medicare quality score?
JIMMY GIANG, D.O. has a CMS MIPS Final Score of 64.1553/100 (Quality: 67.5685, Cost: 11.87). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JIMMY GIANG, D.O. located?
JIMMY GIANG, D.O. is located at 8225 W 20TH ST, GREELEY, CO, 80634. Phone: (970) 378-1414.
What is JIMMY GIANG, D.O.'s NPI number?
JIMMY GIANG, D.O.'s National Provider Identifier (NPI) is 1073933941, issued on 04/18/2014.
Does JIMMY GIANG, D.O. prescribe more brand-name or generic drugs?
JIMMY GIANG, D.O.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $280K 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 JIMMY GIANG, D.O. prescribe most often?
Based on 2023 Medicare Part D data, JIMMY GIANG, D.O.'s most frequently prescribed drugs include Omeprazole, Peg 3350-Electrolyte, Famotidine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JIMMY GIANG, D.O. accept Medicare?
JIMMY GIANG, D.O. appears in CMS Medicare data with 659 Part D claims and 388 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JIMMY GIANG, D.O.'s credentials?
JIMMY GIANG, D.O.'s NPI is 1073933941 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.
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