2026 NPPES data General Practice Physician NPI 1295733012 M.D.
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ERIC SENN, M.D.

General Practice Physician in MYRTLE BEACH, South 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
6K
Medicare Part D claims · 654 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ERIC SENN, M.D. is a General Practice Physician ([object Object]) practicing in MYRTLE BEACH, South Carolina with a Medicare Part D prescribing footprint of 6K claims across 654 beneficiaries — 9% brand-name prescribing .

What stands out: ERIC SENN, M.D. filed 5,758 Medicare Part D claims in 2023 across MYRTLE BEACH, South Carolina. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

ERIC SENN, M.D. 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).

ERIC SENN, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/14/2005

NPI 1295733012

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

5,758 100% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in South Carolina

How General Practice Physician compares to other specialties among South Carolina providers

South Carolina providers

General Practice Physician share within South Carolina

1. General Practice Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Physician share within South Carolina

Specialty board-certification context

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

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

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

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

ERIC SENN, M.D. is a General Practice Physician provider practicing in MYRTLE BEACH, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1295733012. 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.

ERIC SENN, M.D. appears in the CMS NPPES registry as a General Practice Physician provider holding M.D. credentials at 4591 SOCASTEE BLVD, MYRTLE BEACH, SC, 29588, with a listed phone of (843) 497-5929. NPI 1295733012 was issued on 07/14/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SENN 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 5,758 prescription claims written by this provider, covering 654 Medicare beneficiaries and totaling roughly $478K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 1.0%. 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

4591 SOCASTEE BLVD
MYRTLE BEACH, SC 29588

Provider Details

NPI 1295733012
Specialty General Practice Physician
Credentials M.D.
Gender Male
NPI Issued 07/14/2005

Brand vs generic prescribing mix · Generic-heavy

ERIC SENN, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 5,758 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.

5,758
Total Claims
$478K
Total Drug Cost
654
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
15,086
Total Day Supply
445,525
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$363K
Generic Drug Cost
$113K
Opioid Claims
58 (1.0% rate)
Antibiotic Claims
52

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
1.02
Gender Split
39% female / 61% male
Age Distribution
<65: 34, 65-74: 310, 75-84: 260, 85+: 50

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
492
Levothyroxine Sodium
225
Omeprazole
225
Lisinopril
218
Rosuvastatin Calcium
197
Amlodipine Besylate
187
Metformin Hcl
184
Metoprolol Succinate
168
Losartan Potassium
166
Gabapentin
136

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

General Practice Physician Overview

How ERIC SENN, M.D. fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

ERIC SENN, M.D.'s 5,758 claims are above the specialty average of 2,872.

Nearby General Practice Physician Providers in South Carolina

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERIC SENN, M.D.'s specialty?
ERIC SENN, M.D. specializes in General Practice Physician and practices in MYRTLE BEACH, South Carolina. Credentials: M.D..
How much does ERIC SENN, M.D. prescribe under Medicare Part D?
In 2023, ERIC SENN, M.D. wrote 5,758 Medicare Part D claims totaling $478K in drug costs for 654 beneficiaries.
Where is ERIC SENN, M.D. located?
ERIC SENN, M.D. is located at 4591 SOCASTEE BLVD, MYRTLE BEACH, SC, 29588. Phone: (843) 497-5929.
What is ERIC SENN, M.D.'s NPI number?
ERIC SENN, M.D.'s National Provider Identifier (NPI) is 1295733012, issued on 07/14/2005.
Does ERIC SENN, M.D. prescribe more brand-name or generic drugs?
ERIC SENN, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $363K in brand drug costs.
Does ERIC SENN, M.D. prescribe opioids?
Yes, ERIC SENN, M.D. had 58 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does ERIC SENN, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ERIC SENN, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIC SENN, M.D. accept Medicare?
ERIC SENN, M.D. appears in CMS Medicare data with 5,758 Part D claims and 654 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIC SENN, M.D.'s credentials?
ERIC SENN, M.D.'s NPI is 1295733012 with credentials M.D.. 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