2026 NPPES data Family Medicine Physician NPI 1336252352 M.D.
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GRACIELA CALATAYUD, M.D.

Family Medicine Physician in HUNTINGTON PARK, 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
5K
Medicare Part D claims · 342 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$54.22
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

GRACIELA CALATAYUD, M.D. filed 5,327 Medicare Part D claims in 2023 as a Family Medicine Physician in HUNTINGTON PARK, California, prescribing 88% generic.

5K
Part D claims, 2023
88%
generic prescribing
$54.22
industry payments (Sunshine Act)

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.

GRACIELA CALATAYUD, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

5,327 Top 6% higher than 94% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

GRACIELA CALATAYUD, 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 GRACIELA CALATAYUD, M.D.?

Quality data not reported

NPI registry status

Active

Issued 08/16/2006

NPI 1336252352

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

5,327 56% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in California

How Family Medicine Physician compares to other specialties among California providers

California providers

Family Medicine Physician share within California

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

Specialty board-certification context

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

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

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

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

GRACIELA CALATAYUD, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 3400 E FLORENCE AVE, HUNTINGTON PARK, CA, 90255, with a listed phone of (323) 589-9384. NPI 1336252352 was issued on 08/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CALATAYUD 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 5,327 prescription claims written by this provider, covering 342 Medicare beneficiaries and totaling roughly $589K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 0.3%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

3400 E FLORENCE AVE
HUNTINGTON PARK, CA 90255

Provider Details

NPI 1336252352
Specialty Family Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 08/16/2006

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for GRACIELA CALATAYUD, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$54

Largest payer

Lilly USA, LLC

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 GRACIELA CALATAYUD, M.D.. To verify GRACIELA CALATAYUD, M.D.'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 · Typical

GRACIELA CALATAYUD, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 5,327 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.

5,327
Total Claims
$589K
Total Drug Cost
342
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,625
Total Day Supply
372,145
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$459K
Generic Drug Cost
$126K
Opioid Claims
16 (0.3% rate)
Antibiotic Claims
150

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.48
Gender Split
66% female / 34% male
Age Distribution
<65: 27, 65-74: 191, 75-84: 96, 85+: 28

Top Prescribed Drugs (Medicare Part D)

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

What GRACIELA CALATAYUD, 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
Metformin Hcl
332
Simvastatin
307
Alendronate Sodium
297
Losartan Potassium
254
Benazepril Hcl
226
Atorvastatin Calcium
211
Amlodipine Besylate
198
Lisinopril
169
Diclofenac Sodium
163
Hydrochlorothiazide
138

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

Family Medicine Physician Overview

How GRACIELA CALATAYUD, M.D. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

GRACIELA CALATAYUD, M.D.'s 5,327 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in California

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GRACIELA CALATAYUD, M.D.'s specialty?
GRACIELA CALATAYUD, M.D. specializes in Family Medicine Physician and practices in HUNTINGTON PARK, California. Credentials: M.D..
How much does GRACIELA CALATAYUD, M.D. prescribe under Medicare Part D?
In 2023, GRACIELA CALATAYUD, M.D. wrote 5,327 Medicare Part D claims totaling $589K in drug costs for 342 beneficiaries.
Where is GRACIELA CALATAYUD, M.D. located?
GRACIELA CALATAYUD, M.D. is located at 3400 E FLORENCE AVE, HUNTINGTON PARK, CA, 90255. Phone: (323) 589-9384.
What is GRACIELA CALATAYUD, M.D.'s NPI number?
GRACIELA CALATAYUD, M.D.'s National Provider Identifier (NPI) is 1336252352, issued on 08/16/2006.
Does GRACIELA CALATAYUD, M.D. prescribe more brand-name or generic drugs?
GRACIELA CALATAYUD, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $459K in brand drug costs.
Does GRACIELA CALATAYUD, M.D. prescribe opioids?
Yes, GRACIELA CALATAYUD, M.D. had 16 opioid claims in 2023 with an opioid prescribing rate of 0.3%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does GRACIELA CALATAYUD, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GRACIELA CALATAYUD, M.D.'s most frequently prescribed drugs include Metformin Hcl, Simvastatin, Alendronate Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GRACIELA CALATAYUD, M.D. accept Medicare?
GRACIELA CALATAYUD, M.D. appears in CMS Medicare data with 5,327 Part D claims and 342 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GRACIELA CALATAYUD, M.D.'s credentials?
GRACIELA CALATAYUD, M.D.'s NPI is 1336252352 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