2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1336110642 MD
Verify on CMS →

STEPHEN PARKER, MD

Physical Medicine & Rehabilitation Physician in MURRELLS INLET, 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
2K
Medicare Part D claims · 421 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
99%
generic claims · 1% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.5499/100
▲ 2 pts above national avg 83.1 · [object Object]

What the federal data shows

STEPHEN PARKER, MD reported a CMS MIPS final score of 85.5499/100 — above the 83.1 national average — and filed 1,726 Medicare Part D claims in 2023.

85.5499/100
MIPS score · +2 vs avg
2K
Part D claims, 2023
99%
generic prescribing
Likely
board-certified (heuristic)

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.

STEPHEN PARKER, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

86 49th percentile higher than 49% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

STEPHEN PARKER, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about STEPHEN PARKER, MD?

High performer (top quartile)

NPI registry status

Active

Issued 01/27/2006

NPI 1336110642

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,306 US NPIs in this specialty

Medicare Part D claims

1,726 121% vs specialty avg

2023 prescription claims

Specialty avg: 781

MIPS final score

85.5499/100 2.4498999999999995% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in South Carolina

How Physical Medicine & Rehabilitation Physician compares to other specialties among South Carolina providers

South Carolina providers

Physical Medicine & Rehabilitation Physician share within South Carolina

1. Physical Medicine & Rehabilitation Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physical Medicine & Rehabilitation Physician share within South Carolina

Medicare quality performance — MIPS

STEPHEN PARKER, MD's 2023 MIPS final score plotted against the Physical Medicine & Rehabilitation Physician national average

High performer (top quartile)
MIPS Final Score
85.5499/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physical Medicine & Rehabilitation Physician) — 85.5499/100 vs national avg 83.1

0%100%National avg83%85.5%
MIPS final score (Physical Medicine & Rehabilitation Physician) — 85.5499/100 vs national avg 83.1

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).

STEPHEN PARKER, MD appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding MD credentials at 3545 HIGHWAY 17, MURRELLS INLET, SC, 29576, with a listed phone of (843) 294-1941. NPI 1336110642 was issued on 01/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PARKER 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 1,726 prescription claims written by this provider, covering 421 Medicare beneficiaries and totaling roughly $41K in drug spend, split 1% brand-name and 99% generic by claim count, with an opioid prescribing rate of 54.2%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.5499/100 for the 2023 performance year (Quality 80.1661, Cost 73.3335), compared with the national average of 83.1.

Physical Medicine & Rehabilitation Physician is a mid-sized specialty nationwide, with 15,306 enrolled providers across 54 states and an average of 781 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

3545 HIGHWAY 17
MURRELLS INLET, SC 29576

Provider Details

NPI 1336110642
Specialty Physical Medicine & Rehabilitation Physician
Credentials MD
Gender Male
NPI Issued 01/27/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

85.5499
Final Score
Avg: 83.1
80.1661
Quality
73.3335
Cost
98
Promoting Interoperability

Reporting: Group practice

Brand vs generic prescribing mix · Generic-heavy

STEPHEN PARKER, MD — brand share 1.0%
Specialty average (est.)

1% brand-name claims vs 99% generic, on 1,726 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.

1,726
Total Claims
$41K
Total Drug Cost
421
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,804
Total Day Supply
42,575
Brand vs Generic
1% brand / 99% generic
Brand Drug Cost
$3K
Generic Drug Cost
$38K
Opioid Claims
935 (54.2% rate)
Antibiotic Claims
14

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
1.12
Gender Split
57% female / 43% male
Age Distribution
<65: 48, 65-74: 209, 75-84: 142, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

What STEPHEN PARKER, 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
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
328
Gabapentin
302
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
239
Tramadol Hcl
192
Tizanidine Hcl
109
Morphine Sulfate Er
Morphine Sulfate
72
Cyclobenzaprine Hcl
50
Oxycodone Hcl
48
Pregabalin
44
Diazepam
43

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

Physical Medicine & Rehabilitation Physician Overview

How STEPHEN PARKER, MD fits within the Physical Medicine & Rehabilitation Physician landscape nationally.

15,306
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider

STEPHEN PARKER, MD's 1,726 claims are above the specialty average of 781.

Nearby Physical Medicine & Rehabilitation Physician Providers in South Carolina

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

Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEPHEN PARKER, MD's specialty?
STEPHEN PARKER, MD specializes in Physical Medicine & Rehabilitation Physician and practices in MURRELLS INLET, South Carolina. Credentials: MD.
How much does STEPHEN PARKER, MD prescribe under Medicare Part D?
In 2023, STEPHEN PARKER, MD wrote 1,726 Medicare Part D claims totaling $41K in drug costs for 421 beneficiaries.
What is STEPHEN PARKER, MD's Medicare quality score?
STEPHEN PARKER, MD has a CMS MIPS Final Score of 85.5499/100 (Quality: 80.1661, Cost: 73.3335). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is STEPHEN PARKER, MD located?
STEPHEN PARKER, MD is located at 3545 HIGHWAY 17, MURRELLS INLET, SC, 29576. Phone: (843) 294-1941.
What is STEPHEN PARKER, MD's NPI number?
STEPHEN PARKER, MD's National Provider Identifier (NPI) is 1336110642, issued on 01/27/2006.
Does STEPHEN PARKER, MD prescribe more brand-name or generic drugs?
STEPHEN PARKER, MD's prescribing is 1% brand-name and 99% generic drugs by claim count, with $3K in brand drug costs.
Does STEPHEN PARKER, MD prescribe opioids?
Yes, STEPHEN PARKER, MD had 935 opioid claims in 2023 with an opioid prescribing rate of 54.2%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US?
There are 15,306 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does STEPHEN PARKER, MD prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN PARKER, MD's most frequently prescribed drugs include Oxycodone-Acetaminophen, Gabapentin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN PARKER, MD accept Medicare?
STEPHEN PARKER, MD appears in CMS Medicare data with 1,726 Part D claims and 421 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN PARKER, MD's credentials?
STEPHEN PARKER, MD's NPI is 1336110642 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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