2026 NPPES data Gastroenterology Physician NPI 1699766097 MD
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Ernest Ofori-Darko, MD

Gastroenterology Physician in Midland, Michigan. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,567 in Gastroenterology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 499 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
26.3/100
▼ 57 pts below national avg 83.1 · Below average
Industry payments
$439.12
20 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ernest Ofori-Darko, MD reported a CMS MIPS final score of 26.3/100 - below the 83.1 national average - and filed 1,678 Medicare Part D claims in 2023.

26.3/100
MIPS score · -57 vs avg
2K
Part D claims, 2023
78%
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.

Ernest Ofori-Darko, MD's MIPS score vs every scored U.S. clinician

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

26 3rd percentile higher than 3% 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%). This entry sits in this band. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 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

Where Ernest Ofori-Darko, MD sits

This provider among gastroenterology physician peers

Across the 5,957 gastroenterology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Ernest Ofori-Darko, MD writes more Part D claims than 84% of them and scores higher on MIPS quality than 4% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 0Ernest Ofori-Darko, MD-Part D claim volume, percentile in specialty: 84 · MIPS quality, percentile: 4
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one gastroenterology physician peer from a representative sample of 60; the gold marker is Ernest Ofori-Darko, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Ernest Ofori-Darko, 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 Ernest Ofori-Darko, MD?

Below national average

NPI registry status

Active

Issued 11/03/2005

NPI 1699766097

Primary specialty

Gastroenterology Physician

Mid-sized

16,567 US NPIs in this specialty

Medicare Part D claims

1,678 101% vs specialty avg

2023 prescription claims

Specialty avg: 833

MIPS final score

26.3/100 56.8 pts vs avg

Below average band

vs 83.1 national avg

Specialty distribution in Michigan

How Gastroenterology Physician compares to other specialties among Michigan providers

Michigan providers

Largest specialties in Michigan (% of in-state providers)

Behavior Technician - 21.4%Behavior Technician21.4%Clinical Social Worker - 5.8%Clinical Social Worker5.8%Student in an Organized Health Care Education/Training Program - 3.6%Student in an Organized Health Care Education/Training Program3.6%Physical Therapist - 3.4%Physical Therapist3.4%Social Worker - 3.4%Social Worker3.4%Pharmacist - 3%Pharmacist3%Gastroenterology Physician - 0.1%Gastroenterology Physician0.1%
Largest specialties in Michigan (% of in-state providers)

Medicare quality performance, MIPS

Ernest Ofori-Darko, MD's 2023 MIPS final score plotted against the Gastroenterology Physician national average

Below national average
MIPS Final Score
26.3/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Gastroenterology Physician) - 26.3/100 vs national avg 83.1

0%100%National avg83%26.3%
MIPS final score (Gastroenterology Physician) - 26.3/100 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).

Ernest Ofori-Darko, MD appears in the CMS NPPES registry as a Gastroenterology Physician provider holding MD credentials at 4230 BAY CITY RD, Midland, MI, 48642, with a listed phone of (989) 839-0750. NPI 1699766097 was issued on 11/03/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Ofori-Darko 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 1,678 prescription claims written by this provider, covering 499 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, split 22% brand-name and 78% 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 26.3/100 for the 2023 performance year (Quality 0, Cost 87.8), 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

4230 BAY CITY RD
Midland, MI 48642

Provider Details

NPI 1699766097
Specialty Gastroenterology Physician
Credentials MD
Gender Male
NPI Issued 11/03/2005

CMS Quality Score (MIPS)

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

26.3351
Final Score
Avg: 83.1
0
Quality
87.7838
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where Ernest Ofori-Darko, 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.

Mymichigan Medical Center Midland
★★★★☆ 4/5
Midland, MI
Acute Care Hospitals
CMS CCN: 230222

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 Ernest Ofori-Darko, MD. Source: openpaymentsdata.cms.gov.

Total received

$439

Largest payer

PFIZER 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.

License & disciplinary context - Michigan MI-BOM 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~41K Michigan medical licensees in 2023 - they are NOT specific to Ernest Ofori-Darko, MD. To verify Ernest Ofori-Darko, MD's current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases

MI-BOM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Ernest Ofori-Darko, MD - brand share 22.0%
Gastroenterology Physician average

22% brand-name claims vs 78% generic, on 1,678 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.

1,678
Total Claims
$1.4M
Total Drug Cost
499
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,741
Total Day Supply
74,557
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$1.3M
Generic Drug Cost
$119K
Antibiotic Claims
44

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.14
Gender Split
55% female / 45% male
Age Distribution
<65: 73, 65-74: 242, 75-84: 163, 85+: 21

Top Prescribed Drugs (Medicare Part D)

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

What Ernest Ofori-Darko, 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
Omeprazole
283
Pantoprazole Sodium
179
Balsalazide Disodium
134
Famotidine
77
Diphenoxylate-Atropine
Diphenoxylate Hcl/Atropine
76
Sutab
Sod Sulf/Pot Chloride/Mag Sulf
76
Metoclopramide Hcl
66
Budesonide Dr
Budesonide
49
Cholestyramine
Cholestyramine (With Sugar)
45
Budesonide Ec
Budesonide
38

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

Gastroenterology Physician Overview

How Ernest Ofori-Darko, MD fits within the Gastroenterology Physician landscape nationally.

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

Ernest Ofori-Darko, MD's 1,678 claims are above the specialty average of 833.

Nearby Gastroenterology Physician Providers in Michigan

Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Ofori-Darko.

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Michigan medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Gastroenterology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Ernest Ofori-Darko, MD's specialty?
Ernest Ofori-Darko, MD specializes in Gastroenterology Physician and practices in Midland, Michigan. Credentials: MD.
How much does Ernest Ofori-Darko, MD prescribe under Medicare Part D?
In 2023, Ernest Ofori-Darko, MD wrote 1,678 Medicare Part D claims totaling $1.4M in drug costs for 499 beneficiaries.
What is Ernest Ofori-Darko, MD's Medicare quality score?
Ernest Ofori-Darko, MD has a CMS MIPS Final Score of 26.3/100 (Quality: 0, Cost: 87.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Ernest Ofori-Darko, MD located?
Ernest Ofori-Darko, MD is located at 4230 BAY CITY RD, Midland, MI, 48642. Phone: (989) 839-0750.
What is Ernest Ofori-Darko, MD's NPI number?
Ernest Ofori-Darko, MD's National Provider Identifier (NPI) is 1699766097, issued on 11/03/2005.
Does Ernest Ofori-Darko, MD prescribe more brand-name or generic drugs?
Ernest Ofori-Darko, MD's prescribing is 22% brand-name and 78% generic drugs by claim count, with $1.3M 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 Ernest Ofori-Darko, MD prescribe most often?
Based on 2023 Medicare Part D data, Ernest Ofori-Darko, MD's most frequently prescribed drugs include Omeprazole, Pantoprazole Sodium, Balsalazide Disodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ernest Ofori-Darko, MD accept Medicare?
Ernest Ofori-Darko, MD appears in CMS Medicare data with 1,678 Part D claims and 499 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ernest Ofori-Darko, MD's credentials?
Ernest Ofori-Darko, MD's NPI is 1699766097 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

Compiled from official public sources by the PlainDoctor editorial team.