2026 NPPES data Geriatric Medicine (Family Medicine) Physician NPI 1598743114 MD
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KELLI MAYFIELD, MD

Geriatric Medicine (Family Medicine) Physician in CONCORD, North Carolina. 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
16K
Medicare Part D claims · 507 beneficiaries · Geriatric Medicine (Family Medicine) Physician avg: 5K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: KELLI MAYFIELD, MD is a Geriatric Medicine (Family Medicine) Physician ([object Object]) practicing in CONCORD, North Carolina with a Medicare Part D prescribing footprint of 16K claims across 507 beneficiaries — 18% brand-name prescribing .

What stands out: KELLI MAYFIELD, MD filed 16,321 Medicare Part D claims in 2023 across CONCORD, North Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

KELLI MAYFIELD, 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).

KELLI MAYFIELD, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 01/04/2006

NPI 1598743114

Primary specialty

Geriatric Medicine (Family Medicine) Physician

Niche

1,779 US NPIs in this specialty

Medicare Part D claims

16,321 236% vs specialty avg

2023 prescription claims

Specialty avg: 4,854

Specialty distribution in North Carolina

How Geriatric Medicine (Family Medicine) Physician compares to other specialties among North Carolina providers

North Carolina providers

Geriatric Medicine (Family Medicine) Physician share within North Carolina

1. Geriatric Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Geriatric Medicine (Family Medicine) Physician share within North Carolina

Specialty board-certification context

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

Quality data not reported
Est. board-certified rate
78%
Geriatric Medicine (Family Medicine) Physician ABMS/AOA estimate

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

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

KELLI MAYFIELD, MD is a Geriatric Medicine (Family Medicine) Physician provider practicing in CONCORD, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1598743114. 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.

KELLI MAYFIELD, MD appears in the CMS NPPES registry as a Geriatric Medicine (Family Medicine) Physician provider holding MD credentials at 101 CABARRUS AVE E, CONCORD, NC, 28025, with a listed phone of (980) 960-2563. NPI 1598743114 was issued on 01/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAYFIELD 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 16,321 prescription claims written by this provider, covering 507 Medicare beneficiaries and totaling roughly $1.3 million in drug spend, split 18% brand-name and 82% generic by claim count, with an opioid prescribing rate of 1.2%. 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.

Geriatric Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 1,779 enrolled providers across 52 states and an average of 4,854 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

101 CABARRUS AVE E
CONCORD, NC 28025

Provider Details

NPI 1598743114
Specialty Geriatric Medicine (Family Medicine) Physician
Credentials MD
Gender Female
NPI Issued 01/04/2006

Hospital and facility affiliations

Facilities where KELLI MAYFIELD, 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.

MAINE MEDICAL CONSULTANTS PC
BANGOR, ME
PAI PARTICIPANT 7 PC
FALMOUTH, ME

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

Brand vs generic prescribing mix · Typical

KELLI MAYFIELD, MD — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 16,321 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.

16,321
Total Claims
$1.3M
Total Drug Cost
507
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
16,410
Total Day Supply
382,542
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$915K
Generic Drug Cost
$364K
Opioid Claims
204 (1.2% rate)
Antibiotic Claims
357

Patient Demographics

Average Patient Age
79.5 years
Avg HCC Risk Score
2.15
Gender Split
66% female / 34% male
Age Distribution
<65: 39, 65-74: 109, 75-84: 189, 85+: 170

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
704
Atorvastatin Calcium
625
Furosemide
603
Sertraline Hcl
449
Eliquis
Apixaban
368
Metoprolol Tartrate
364
Lisinopril
353
Gabapentin
352
Mirtazapine
346
Metformin Hcl
290

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

Geriatric Medicine (Family Medicine) Physician Overview

How KELLI MAYFIELD, MD fits within the Geriatric Medicine (Family Medicine) Physician landscape nationally.

1,779
Geriatric Medicine (Family Medicine) Physician Providers in US
52
States with Geriatric Medicine (Family Medicine) Physician
4,854
Avg Claims per Provider

KELLI MAYFIELD, MD's 16,321 claims are above the specialty average of 4,854.

Nearby Geriatric Medicine (Family Medicine) Physician Providers in North Carolina

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

Compare Geriatric Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KELLI MAYFIELD, MD's specialty?
KELLI MAYFIELD, MD specializes in Geriatric Medicine (Family Medicine) Physician and practices in CONCORD, North Carolina. Credentials: MD.
How much does KELLI MAYFIELD, MD prescribe under Medicare Part D?
In 2023, KELLI MAYFIELD, MD wrote 16,321 Medicare Part D claims totaling $1.3M in drug costs for 507 beneficiaries.
Where is KELLI MAYFIELD, MD located?
KELLI MAYFIELD, MD is located at 101 CABARRUS AVE E, CONCORD, NC, 28025. Phone: (980) 960-2563.
What is KELLI MAYFIELD, MD's NPI number?
KELLI MAYFIELD, MD's National Provider Identifier (NPI) is 1598743114, issued on 01/04/2006.
Does KELLI MAYFIELD, MD prescribe more brand-name or generic drugs?
KELLI MAYFIELD, MD's prescribing is 18% brand-name and 82% generic drugs by claim count, with $915K in brand drug costs.
Does KELLI MAYFIELD, MD prescribe opioids?
Yes, KELLI MAYFIELD, MD had 204 opioid claims in 2023 with an opioid prescribing rate of 1.2%.
How many Geriatric Medicine (Family Medicine) Physician providers are there in the US?
There are 1,779 Geriatric Medicine (Family Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Family Medicine) Physician provider writes 4,854 Medicare Part D claims per year.
What drugs does KELLI MAYFIELD, MD prescribe most often?
Based on 2023 Medicare Part D data, KELLI MAYFIELD, MD's most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KELLI MAYFIELD, MD accept Medicare?
KELLI MAYFIELD, MD appears in CMS Medicare data with 16,321 Part D claims and 507 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KELLI MAYFIELD, MD's credentials?
KELLI MAYFIELD, MD's NPI is 1598743114 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