2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1144228800 MD
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DONALD CULVER, MD

Geriatric Medicine (Internal Medicine) Physician in HENDERSONVILLE, 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
2K
Medicare Part D claims · 46 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DONALD CULVER, MD is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in HENDERSONVILLE, North Carolina with a Medicare Part D prescribing footprint of 2K claims across 46 beneficiaries — 20% brand-name prescribing .

What stands out: DONALD CULVER, MD filed 1,889 Medicare Part D claims in 2023 across HENDERSONVILLE, North Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DONALD CULVER, 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).

DONALD CULVER, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 07/07/2005

NPI 1144228800

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

1,889 58% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in North Carolina

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

North Carolina providers

Geriatric Medicine (Internal Medicine) Physician share within North Carolina

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

Specialty board-certification context

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

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

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

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

DONALD CULVER, MD is a Geriatric Medicine (Internal Medicine) Physician provider practicing in HENDERSONVILLE, North Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1144228800. 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.

DONALD CULVER, MD appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding MD credentials at 113 TANAGER LN, HENDERSONVILLE, NC, 28792, with a listed phone of (828) 241-5511. NPI 1144228800 was issued on 07/07/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CULVER 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 1,889 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $85K 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

113 TANAGER LN
HENDERSONVILLE, NC 28792

Provider Details

NPI 1144228800
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 07/07/2005

Brand vs generic prescribing mix · Typical

DONALD CULVER, MD — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 1,889 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.

1,889
Total Claims
$85K
Total Drug Cost
46
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,889
Total Day Supply
48,421
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$48K
Generic Drug Cost
$36K

Patient Demographics

Average Patient Age
82.7 years
Avg HCC Risk Score
2.35

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
176
Gabapentin
111
Escitalopram Oxalate
99
Furosemide
73
Sertraline Hcl
69
Lisinopril
62
Atorvastatin Calcium
50
Tamsulosin Hcl
50
Trazodone Hcl
47
Carvedilol
45

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

Geriatric Medicine (Internal Medicine) Physician Overview

How DONALD CULVER, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

DONALD CULVER, MD's 1,889 claims are below the specialty average of 4,450.

Nearby Geriatric Medicine (Internal 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 CULVER.

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

Frequently Asked Questions

What is DONALD CULVER, MD's specialty?
DONALD CULVER, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in HENDERSONVILLE, North Carolina. Credentials: MD.
How much does DONALD CULVER, MD prescribe under Medicare Part D?
In 2023, DONALD CULVER, MD wrote 1,889 Medicare Part D claims totaling $85K in drug costs for 46 beneficiaries.
Where is DONALD CULVER, MD located?
DONALD CULVER, MD is located at 113 TANAGER LN, HENDERSONVILLE, NC, 28792. Phone: (828) 241-5511.
What is DONALD CULVER, MD's NPI number?
DONALD CULVER, MD's National Provider Identifier (NPI) is 1144228800, issued on 07/07/2005.
Does DONALD CULVER, MD prescribe more brand-name or generic drugs?
DONALD CULVER, MD's prescribing is 20% brand-name and 80% generic drugs by claim count, with $48K in brand drug costs.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does DONALD CULVER, MD prescribe most often?
Based on 2023 Medicare Part D data, DONALD CULVER, MD's most frequently prescribed drugs include Levothyroxine Sodium, Gabapentin, Escitalopram Oxalate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DONALD CULVER, MD accept Medicare?
DONALD CULVER, MD appears in CMS Medicare data with 1,889 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DONALD CULVER, MD's credentials?
DONALD CULVER, MD's NPI is 1144228800 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