2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1588767651 MD
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SHERRY SONKA-MAAREK, MD

Physical Medicine & Rehabilitation Physician in SAN PEDRO, California. 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
529
Medicare Part D claims · 50 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

SHERRY SONKA-MAAREK, MD filed 529 Medicare Part D claims in 2023 as a Physical Medicine & Rehabilitation Physician in SAN PEDRO, California, prescribing 95% generic.

529
Part D claims, 2023
95%
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.

SHERRY SONKA-MAAREK, MD's Medicare Part D volume vs every U.S. prescriber

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

529 Top 34% higher than 66% 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%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 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)

SHERRY SONKA-MAAREK, 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 SHERRY SONKA-MAAREK, MD?

Quality data not reported

NPI registry status

Active

Issued 09/06/2006

NPI 1588767651

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,306 US NPIs in this specialty

Medicare Part D claims

529 32% vs specialty avg

2023 prescription claims

Specialty avg: 781

Specialty distribution in California

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

California providers

Physical Medicine & Rehabilitation Physician share within California

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

Specialty board-certification context

Estimated specialty board-certified rate — Physical Medicine & Rehabilitation Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physical Medicine & Rehabilitation Physician ABMS/AOA estimate

Est. board-certified rate (Physical Medicine & Rehabilitation Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physical Medicine & Rehabilitation 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).

SHERRY SONKA-MAAREK, MD appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding MD credentials at 1300 W SEVENTH STREET, SAN PEDRO, CA, 90732, with a listed phone of (310) 386-2305. NPI 1588767651 was issued on 09/06/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SONKA-MAAREK 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 529 prescription claims written by this provider, covering 50 Medicare beneficiaries and totaling roughly $38K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 21.9%. 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.

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

1300 W SEVENTH STREET
SAN PEDRO, CA 90732

Provider Details

NPI 1588767651
Specialty Physical Medicine & Rehabilitation Physician
Credentials MD
Gender Female
NPI Issued 09/06/2006

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to SHERRY SONKA-MAAREK, MD. To verify SHERRY SONKA-MAAREK, MD's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

SHERRY SONKA-MAAREK, MD — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 529 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.

529
Total Claims
$38K
Total Drug Cost
50
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
694
Total Day Supply
20,075
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$12K
Generic Drug Cost
$26K
Opioid Claims
116 (21.9% rate)

Patient Demographics

Average Patient Age
67.7 years
Avg HCC Risk Score
2.85
Gender Split
44% female / 56% male
Age Distribution
<65: 16, 65-74: 20, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What SHERRY SONKA-MAAREK, 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
Meloxicam
46
Gabapentin
42
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
42
Baclofen
34
Tizanidine Hcl
28
Diazepam
27
Hydromorphone Hcl
27
Escitalopram Oxalate
17
Pregabalin
14
Zolpidem Tartrate Er
Zolpidem Tartrate
14

* 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 SHERRY SONKA-MAAREK, 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

SHERRY SONKA-MAAREK, MD's 529 claims are below the specialty average of 781.

Nearby Physical Medicine & Rehabilitation Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as SONKA-MAAREK.

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

Frequently Asked Questions

What is SHERRY SONKA-MAAREK, MD's specialty?
SHERRY SONKA-MAAREK, MD specializes in Physical Medicine & Rehabilitation Physician and practices in SAN PEDRO, California. Credentials: MD.
How much does SHERRY SONKA-MAAREK, MD prescribe under Medicare Part D?
In 2023, SHERRY SONKA-MAAREK, MD wrote 529 Medicare Part D claims totaling $38K in drug costs for 50 beneficiaries.
Where is SHERRY SONKA-MAAREK, MD located?
SHERRY SONKA-MAAREK, MD is located at 1300 W SEVENTH STREET, SAN PEDRO, CA, 90732. Phone: (310) 386-2305.
What is SHERRY SONKA-MAAREK, MD's NPI number?
SHERRY SONKA-MAAREK, MD's National Provider Identifier (NPI) is 1588767651, issued on 09/06/2006.
Does SHERRY SONKA-MAAREK, MD prescribe more brand-name or generic drugs?
SHERRY SONKA-MAAREK, MD's prescribing is 5% brand-name and 95% generic drugs by claim count, with $12K in brand drug costs.
Does SHERRY SONKA-MAAREK, MD prescribe opioids?
Yes, SHERRY SONKA-MAAREK, MD had 116 opioid claims in 2023 with an opioid prescribing rate of 21.9%.
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 SHERRY SONKA-MAAREK, MD prescribe most often?
Based on 2023 Medicare Part D data, SHERRY SONKA-MAAREK, MD's most frequently prescribed drugs include Meloxicam, Gabapentin, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHERRY SONKA-MAAREK, MD accept Medicare?
SHERRY SONKA-MAAREK, MD appears in CMS Medicare data with 529 Part D claims and 50 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHERRY SONKA-MAAREK, MD's credentials?
SHERRY SONKA-MAAREK, MD's NPI is 1588767651 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