2026 NPPES data Ophthalmology Physician NPI 1508878364 MD
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MICHAEL GRIESS, MD

Ophthalmology Physician in FARGO, North Dakota. 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
1K
Medicare Part D claims · 312 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
61%
generic claims · 39% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$100.19
5 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHAEL GRIESS, MD filed 1,266 Medicare Part D claims in 2023 as a Ophthalmology Physician in FARGO, North Dakota, prescribing 61% generic.

1K
Part D claims, 2023
61%
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.

MICHAEL GRIESS, MD's Medicare Part D volume vs every U.S. prescriber

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

1,266 Top 22% higher than 78% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). This entry sits in this band. 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)

MICHAEL GRIESS, MD 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 MICHAEL GRIESS, MD?

Quality data not reported

NPI registry status

Active

Issued 08/12/2006

NPI 1508878364

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,266 11% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in North Dakota

How Ophthalmology Physician compares to other specialties among North Dakota providers

North Dakota providers

Ophthalmology Physician share within North Dakota

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within North Dakota

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Ophthalmology 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).

MICHAEL GRIESS, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 1702 UNIVERSITY DR S, FARGO, ND, 58103, with a listed phone of (701) 364-3300. NPI 1508878364 was issued on 08/12/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRIESS 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 1,266 prescription claims written by this provider, covering 312 Medicare beneficiaries and totaling roughly $77K in drug spend, split 39% brand-name and 61% 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.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

1702 UNIVERSITY DR S
FARGO, ND 58103

Provider Details

NPI 1508878364
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 08/12/2006

Hospital and facility affiliations

Facilities where MICHAEL GRIESS, 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.

NORTHWESTERN MEDICAL FACULTY FOUNDATION
DEKALB, IL
OPHTHALMOLOGY ASSOCIATES, LTD
ELGIN, IL

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 MICHAEL GRIESS, MD. Source: openpaymentsdata.cms.gov.

Total received

$100

Largest payer

Harrow Eye, LLC

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 · Above average

MICHAEL GRIESS, MD — brand share 39.0%
Specialty average (est.)

39% brand-name claims vs 61% generic, on 1,266 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.

1,266
Total Claims
$77K
Total Drug Cost
312
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,305
Total Day Supply
65,456
Brand vs Generic
39% brand / 61% generic
Brand Drug Cost
$58K
Generic Drug Cost
$19K

Patient Demographics

Average Patient Age
76.4 years
Avg HCC Risk Score
1.36
Gender Split
59% female / 41% male

Top Prescribed Drugs (Medicare Part D)

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

What MICHAEL GRIESS, 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
Latanoprost
604
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
141
Timolol Maleate
131
Brimonidine Tartrate
105
Dorzolamide Hcl
49
Erythromycin
Erythromycin Base
39
Ketorolac Tromethamine
28
Prednisolone Acetate
19
Rocklatan
Netarsudil Mesylat/Latanoprost
18
Brimonidine Tartrate-Timolol
Brimonidine Tartrate/Timolol
15

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

Ophthalmology Physician Overview

How MICHAEL GRIESS, MD fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

MICHAEL GRIESS, MD's 1,266 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in North Dakota

Other clinicians with the same primary specialty enrolled in North Dakota, drawn from the same CMS NPPES roster as GRIESS.

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

Frequently Asked Questions

What is MICHAEL GRIESS, MD's specialty?
MICHAEL GRIESS, MD specializes in Ophthalmology Physician and practices in FARGO, North Dakota. Credentials: MD.
How much does MICHAEL GRIESS, MD prescribe under Medicare Part D?
In 2023, MICHAEL GRIESS, MD wrote 1,266 Medicare Part D claims totaling $77K in drug costs for 312 beneficiaries.
Where is MICHAEL GRIESS, MD located?
MICHAEL GRIESS, MD is located at 1702 UNIVERSITY DR S, FARGO, ND, 58103. Phone: (701) 364-3300.
What is MICHAEL GRIESS, MD's NPI number?
MICHAEL GRIESS, MD's National Provider Identifier (NPI) is 1508878364, issued on 08/12/2006.
Does MICHAEL GRIESS, MD prescribe more brand-name or generic drugs?
MICHAEL GRIESS, MD's prescribing is 39% brand-name and 61% generic drugs by claim count, with $58K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does MICHAEL GRIESS, MD prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL GRIESS, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL GRIESS, MD accept Medicare?
MICHAEL GRIESS, MD appears in CMS Medicare data with 1,266 Part D claims and 312 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL GRIESS, MD's credentials?
MICHAEL GRIESS, MD's NPI is 1508878364 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.
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