2026 NPPES data Otolaryngology Physician NPI 1588748321 MD
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GREGORY TARASIDIS, MD

Otolaryngology Physician in GREENWOOD, 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
785
Medicare Part D claims · 286 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

GREGORY TARASIDIS, MD filed 785 Medicare Part D claims in 2023 as a Otolaryngology Physician in GREENWOOD, South Carolina, prescribing 69% generic.

785
Part D claims, 2023
69%
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.

GREGORY TARASIDIS, MD's Medicare Part D volume vs every U.S. prescriber

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

785 Top 29% higher than 71% 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%). This entry sits in this band. 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)

GREGORY TARASIDIS, 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 GREGORY TARASIDIS, MD?

Quality data not reported

NPI registry status

Active

Issued 10/25/2006

NPI 1588748321

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

785 54% vs specialty avg

2023 prescription claims

Specialty avg: 509

Specialty distribution in South Carolina

How Otolaryngology Physician compares to other specialties among South Carolina providers

South Carolina providers

Otolaryngology Physician share within South Carolina

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

Specialty board-certification context

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

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

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

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

GREGORY TARASIDIS, MD appears in the CMS NPPES registry as a Otolaryngology Physician provider holding MD credentials at 1015 SPRING ST, GREENWOOD, SC, 29646, with a listed phone of (864) 227-6741. NPI 1588748321 was issued on 10/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TARASIDIS 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 785 prescription claims written by this provider, covering 286 Medicare beneficiaries and totaling roughly $27K in drug spend, split 31% brand-name and 69% 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.

Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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

1015 SPRING ST
GREENWOOD, SC 29646

Provider Details

NPI 1588748321
Specialty Otolaryngology Physician
Credentials MD
Gender Male
NPI Issued 10/25/2006

Brand vs generic prescribing mix · Above average

GREGORY TARASIDIS, MD — brand share 31.0%
Specialty average (est.)

31% brand-name claims vs 69% generic, on 785 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.

785
Total Claims
$27K
Total Drug Cost
286
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,832
Total Day Supply
53,736
Brand vs Generic
31% brand / 69% generic
Brand Drug Cost
$17K
Generic Drug Cost
$10K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.18
Gender Split
73% female / 27% male
Age Distribution
<65: 42, 65-74: 126, 75-84: 102, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

What GREGORY TARASIDIS, 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
Levothyroxine Sodium
315
Synthroid
Levothyroxine Sodium
90
Fluticasone Propionate
77
Montelukast Sodium
43
Pantoprazole Sodium
41
Methimazole
34
Levoxyl
Levothyroxine Sodium
33
Azelastine Hcl
23
Famotidine
22
Omeprazole
19

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

Otolaryngology Physician Overview

How GREGORY TARASIDIS, MD fits within the Otolaryngology Physician landscape nationally.

10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider

GREGORY TARASIDIS, MD's 785 claims are above the specialty average of 509.

Nearby Otolaryngology Physician Providers in South Carolina

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

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

Frequently Asked Questions

What is GREGORY TARASIDIS, MD's specialty?
GREGORY TARASIDIS, MD specializes in Otolaryngology Physician and practices in GREENWOOD, South Carolina. Credentials: MD.
How much does GREGORY TARASIDIS, MD prescribe under Medicare Part D?
In 2023, GREGORY TARASIDIS, MD wrote 785 Medicare Part D claims totaling $27K in drug costs for 286 beneficiaries.
Where is GREGORY TARASIDIS, MD located?
GREGORY TARASIDIS, MD is located at 1015 SPRING ST, GREENWOOD, SC, 29646. Phone: (864) 227-6741.
What is GREGORY TARASIDIS, MD's NPI number?
GREGORY TARASIDIS, MD's National Provider Identifier (NPI) is 1588748321, issued on 10/25/2006.
Does GREGORY TARASIDIS, MD prescribe more brand-name or generic drugs?
GREGORY TARASIDIS, MD's prescribing is 31% brand-name and 69% generic drugs by claim count, with $17K in brand drug costs.
How many Otolaryngology Physician providers are there in the US?
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does GREGORY TARASIDIS, MD prescribe most often?
Based on 2023 Medicare Part D data, GREGORY TARASIDIS, MD's most frequently prescribed drugs include Levothyroxine Sodium, Synthroid, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGORY TARASIDIS, MD accept Medicare?
GREGORY TARASIDIS, MD appears in CMS Medicare data with 785 Part D claims and 286 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGORY TARASIDIS, MD's credentials?
GREGORY TARASIDIS, MD's NPI is 1588748321 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