2026 NPPES data Transplant Surgery Physician NPI 1063490670 M.D.
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JONATHAN FISHER, M.D.

Transplant Surgery Physician in LA JOLLA, 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
342
Medicare Part D claims · 49 beneficiaries · Transplant Surgery Physician avg: 275
Industry payments
$441.77
18 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JONATHAN FISHER, M.D. filed 342 Medicare Part D claims in 2023 as a Transplant Surgery Physician in LA JOLLA, California.

342
Part D claims, 2023
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.

JONATHAN FISHER, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

342 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 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 certification likely (heuristic — not verified)

JONATHAN FISHER, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — 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 JONATHAN FISHER, M.D.?

Quality data not reported

NPI registry status

Active

Issued 01/04/2006

NPI 1063490670

Primary specialty

Transplant Surgery Physician

Niche

1,026 US NPIs in this specialty

Medicare Part D claims

342 24% vs specialty avg

2023 prescription claims

Specialty avg: 275

Specialty distribution in California

How Transplant Surgery Physician compares to other specialties among California providers

California providers

Transplant Surgery Physician share within California

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

Specialty board-certification context

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

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

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

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

JONATHAN FISHER, M.D. appears in the CMS NPPES registry as a Transplant Surgery Physician provider holding M.D. credentials at 10666 N TORREY PINES RD, LA JOLLA, CA, 92037, with a listed phone of (858) 554-4310. NPI 1063490670 was issued on 01/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FISHER 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 342 prescription claims written by this provider, covering 49 Medicare beneficiaries and totaling roughly $38K in drug spend, with an opioid prescribing rate of 3.8%. 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.

Transplant Surgery Physician is a narrow specialty nationwide, with 1,026 enrolled providers across 48 states and an average of 275 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

10666 N TORREY PINES RD
LA JOLLA, CA 92037

Provider Details

NPI 1063490670
Specialty Transplant Surgery Physician
Credentials M.D.
Gender Male
NPI Issued 01/04/2006

Hospital and facility affiliations

Facilities where JONATHAN FISHER, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

SCRIPPS HEALTH
LA JOLLA, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 JONATHAN FISHER, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$442

Largest payer

Merck Sharp & Dohme 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 JONATHAN FISHER, M.D.. To verify JONATHAN FISHER, 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.

Medicare Part D Prescribing Data

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

342
Total Claims
$38K
Total Drug Cost
49
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
406
Total Day Supply
11,004
Generic Drug Cost
$9K
Opioid Claims
13 (3.8% rate)
Antibiotic Claims
29

Patient Demographics

Average Patient Age
67.2 years
Avg HCC Risk Score
4.70
Gender Split
41% female / 59% male
Age Distribution
<65: 16, 65-74: 21, 75-84: 12, 85+: 0

Top Prescribed Drugs (Medicare Part D)

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

What JONATHAN FISHER, 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
Famotidine
40
Pantoprazole Sodium
39
Amlodipine Besylate
32
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
24
Ursodiol
20
Valganciclovir Hcl
19
Tacrolimus
14
Fluconazole
12
Furosemide
12

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

Transplant Surgery Physician Overview

How JONATHAN FISHER, M.D. fits within the Transplant Surgery Physician landscape nationally.

1,026
Transplant Surgery Physician Providers in US
48
States with Transplant Surgery Physician
275
Avg Claims per Provider

JONATHAN FISHER, M.D.'s 342 claims are above the specialty average of 275.

Nearby Transplant Surgery Physician Providers in California

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

Compare Transplant Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JONATHAN FISHER, M.D.'s specialty?
JONATHAN FISHER, M.D. specializes in Transplant Surgery Physician and practices in LA JOLLA, California. Credentials: M.D..
How much does JONATHAN FISHER, M.D. prescribe under Medicare Part D?
In 2023, JONATHAN FISHER, M.D. wrote 342 Medicare Part D claims totaling $38K in drug costs for 49 beneficiaries.
Where is JONATHAN FISHER, M.D. located?
JONATHAN FISHER, M.D. is located at 10666 N TORREY PINES RD, LA JOLLA, CA, 92037. Phone: (858) 554-4310.
What is JONATHAN FISHER, M.D.'s NPI number?
JONATHAN FISHER, M.D.'s National Provider Identifier (NPI) is 1063490670, issued on 01/04/2006.
Does JONATHAN FISHER, M.D. prescribe opioids?
Yes, JONATHAN FISHER, M.D. had 13 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
How many Transplant Surgery Physician providers are there in the US?
There are 1,026 Transplant Surgery Physician providers across 48 states in the US. The average Transplant Surgery Physician provider writes 275 Medicare Part D claims per year.
What drugs does JONATHAN FISHER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JONATHAN FISHER, M.D.'s most frequently prescribed drugs include Famotidine, Pantoprazole Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JONATHAN FISHER, M.D. accept Medicare?
JONATHAN FISHER, M.D. appears in CMS Medicare data with 342 Part D claims and 49 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JONATHAN FISHER, M.D.'s credentials?
JONATHAN FISHER, M.D.'s NPI is 1063490670 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