2026 NPPES data Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician NPI 1003023813 M.D.
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JOYCE CASTRO GONZALEZ, M.D.

Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician in GUAYNABO, Puerto Rico. 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
647
Medicare Part D claims · 276 beneficiaries · Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician avg: 3K

What the federal data shows

JOYCE CASTRO GONZALEZ, M.D. filed 647 Medicare Part D claims in 2023 as a Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician in GUAYNABO, Puerto Rico.

647
Part D claims, 2023

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.

JOYCE CASTRO GONZALEZ, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

647 Top 31% higher than 69% 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)

JOYCE CASTRO GONZALEZ, 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).

What does the federal data show about JOYCE CASTRO GONZALEZ, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/17/2007

NPI 1003023813

Primary specialty

Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician

Rare

96 US NPIs in this specialty

Medicare Part D claims

647 79% vs specialty avg

2023 prescription claims

Specialty avg: 3,130

Specialty distribution in Puerto Rico

How Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician compares to other specialties among Puerto Rico providers

Puerto Rico providers

Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician share within Puerto Rico

1. Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician share within Puerto Rico

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Hospice and Palliative Medicine (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).

JOYCE CASTRO GONZALEZ, M.D. appears in the CMS NPPES registry as a Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician provider holding M.D. credentials at 1 CALLE SAN MIGUEL APT 75, GUAYNABO, PR, 00966, with a listed phone of (787) 758-8383. NPI 1003023813 was issued on 05/17/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CASTRO GONZALEZ 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 647 prescription claims written by this provider, covering 276 Medicare beneficiaries and totaling roughly $10K in drug spend, with an opioid prescribing rate of 5.1%. 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.

Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician is a narrow specialty nationwide, with 96 enrolled providers across 31 states and an average of 3,130 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

1 CALLE SAN MIGUEL APT 75
GUAYNABO, PR 00966

Provider Details

NPI 1003023813
Specialty Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician
Credentials M.D.
Gender Female
NPI Issued 05/17/2007

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

647
Total Claims
$10K
Total Drug Cost
276
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
681
Total Day Supply
15,616
Generic Drug Cost
$7K
Opioid Claims
33 (5.1% rate)

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.40
Gender Split
72% female / 28% male
Age Distribution
<65: 33, 65-74: 138, 75-84: 88, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

What JOYCE CASTRO GONZALEZ, M.D. 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
Pregabalin
191
Baclofen
120
Meloxicam
58
Gabapentin
54
Duloxetine Hcl
40
Triamcinolone Acetonide
29
Tramadol Hcl-Acetaminophen
Tramadol Hcl/Acetaminophen
22
Diclofenac Potassium
17
Methylprednisolone
12
Tizanidine Hcl
12

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

Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician Overview

How JOYCE CASTRO GONZALEZ, M.D. fits within the Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician landscape nationally.

96
Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician Providers in US
31
States with Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician
3,130
Avg Claims per Provider

JOYCE CASTRO GONZALEZ, M.D.'s 647 claims are below the specialty average of 3,130.

Nearby Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician Providers in Puerto Rico

Other clinicians with the same primary specialty enrolled in Puerto Rico, drawn from the same CMS NPPES roster as CASTRO GONZALEZ.

Compare Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOYCE CASTRO GONZALEZ, M.D.'s specialty?
JOYCE CASTRO GONZALEZ, M.D. specializes in Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician and practices in GUAYNABO, Puerto Rico. Credentials: M.D..
How much does JOYCE CASTRO GONZALEZ, M.D. prescribe under Medicare Part D?
In 2023, JOYCE CASTRO GONZALEZ, M.D. wrote 647 Medicare Part D claims totaling $10K in drug costs for 276 beneficiaries.
Where is JOYCE CASTRO GONZALEZ, M.D. located?
JOYCE CASTRO GONZALEZ, M.D. is located at 1 CALLE SAN MIGUEL APT 75, GUAYNABO, PR, 00966. Phone: (787) 758-8383.
What is JOYCE CASTRO GONZALEZ, M.D.'s NPI number?
JOYCE CASTRO GONZALEZ, M.D.'s National Provider Identifier (NPI) is 1003023813, issued on 05/17/2007.
Does JOYCE CASTRO GONZALEZ, M.D. prescribe opioids?
Yes, JOYCE CASTRO GONZALEZ, M.D. had 33 opioid claims in 2023 with an opioid prescribing rate of 5.1%.
How many Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician providers are there in the US?
There are 96 Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician providers across 31 states in the US. The average Hospice and Palliative Medicine (Physical Medicine & Rehabilitation) Physician provider writes 3,130 Medicare Part D claims per year.
What drugs does JOYCE CASTRO GONZALEZ, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JOYCE CASTRO GONZALEZ, M.D.'s most frequently prescribed drugs include Pregabalin, Baclofen, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOYCE CASTRO GONZALEZ, M.D. accept Medicare?
JOYCE CASTRO GONZALEZ, M.D. appears in CMS Medicare data with 647 Part D claims and 276 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOYCE CASTRO GONZALEZ, M.D.'s credentials?
JOYCE CASTRO GONZALEZ, M.D.'s NPI is 1003023813 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