2026 NPPES data Internal Medicine Physician NPI 1538851456 MD
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KACI GRIFFIN, MD

Internal Medicine Physician in OMAHA, Nebraska. 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
148
Medicare Part D claims · 29 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

KACI GRIFFIN, MD filed 148 Medicare Part D claims in 2023 as a Internal Medicine Physician in OMAHA, Nebraska, prescribing 80% generic.

148
Part D claims, 2023
80%
generic prescribing

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.

KACI GRIFFIN, MD's Medicare Part D volume vs every U.S. prescriber

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

148 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 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-eligible specialty (heuristic — not verified)

KACI GRIFFIN, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about KACI GRIFFIN, MD?

Quality data not reported

NPI registry status

Active

Issued 05/22/2023

NPI 1538851456

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

148 95% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Nebraska

How Internal Medicine Physician compares to other specialties among Nebraska providers

Nebraska providers

Internal Medicine Physician share within Nebraska

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

Specialty board-certification context

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

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

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

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

KACI GRIFFIN, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 982055 NEBRASKA MEDICAL CTR, OMAHA, NE, 68198, with a listed phone of (402) 559-0390. NPI 1538851456 was issued on 05/22/2023. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRIFFIN 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 148 prescription claims written by this provider, covering 29 Medicare beneficiaries and totaling roughly $21K in drug spend, split 20% brand-name and 80% 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.

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

982055 NEBRASKA MEDICAL CTR
OMAHA, NE 68198

Provider Details

NPI 1538851456
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 05/22/2023

Brand vs generic prescribing mix · Typical

KACI GRIFFIN, MD — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 148 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.

148
Total Claims
$21K
Total Drug Cost
29
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
236
Total Day Supply
6,683
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$18K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
69.5 years
Avg HCC Risk Score
1.75

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
15

* 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 KACI GRIFFIN, 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

KACI GRIFFIN, MD's 148 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Nebraska

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

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

Frequently Asked Questions

What is KACI GRIFFIN, MD's specialty?
KACI GRIFFIN, MD specializes in Internal Medicine Physician and practices in OMAHA, Nebraska. Credentials: MD.
How much does KACI GRIFFIN, MD prescribe under Medicare Part D?
In 2023, KACI GRIFFIN, MD wrote 148 Medicare Part D claims totaling $21K in drug costs for 29 beneficiaries.
Where is KACI GRIFFIN, MD located?
KACI GRIFFIN, MD is located at 982055 NEBRASKA MEDICAL CTR, OMAHA, NE, 68198. Phone: (402) 559-0390.
What is KACI GRIFFIN, MD's NPI number?
KACI GRIFFIN, MD's National Provider Identifier (NPI) is 1538851456, issued on 05/22/2023.
Does KACI GRIFFIN, MD prescribe more brand-name or generic drugs?
KACI GRIFFIN, MD's prescribing is 20% brand-name and 80% generic drugs by claim count, with $18K in brand drug costs.
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 KACI GRIFFIN, MD prescribe most often?
Based on 2023 Medicare Part D data, KACI GRIFFIN, MD's most frequently prescribed drugs include Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KACI GRIFFIN, MD accept Medicare?
KACI GRIFFIN, MD appears in CMS Medicare data with 148 Part D claims and 29 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KACI GRIFFIN, MD's credentials?
KACI GRIFFIN, MD's NPI is 1538851456 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