2026 NPPES data Hematology & Oncology Physician NPI 1659432235 M.D.
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JOSEPH SPAHR, M.D.

Hematology & Oncology Physician in GOSHEN, Indiana. 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
1K
Medicare Part D claims · 236 beneficiaries · Hematology & Oncology Physician avg: 847
Industry payments
$24.92
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JOSEPH SPAHR, M.D. is a Hematology & Oncology Physician ([object Object]) practicing in GOSHEN, Indiana with a Medicare Part D prescribing footprint of 1K claims across 236 beneficiaries . Industry payments of $24.92 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JOSEPH SPAHR, M.D. filed 1,061 Medicare Part D claims in 2023 across GOSHEN, Indiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JOSEPH SPAHR, 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).

JOSEPH SPAHR, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 12/13/2006

NPI 1659432235

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

1,061 25% vs specialty avg

2023 prescription claims

Specialty avg: 847

Specialty distribution in Indiana

How Hematology & Oncology Physician compares to other specialties among Indiana providers

Indiana providers

Hematology & Oncology Physician share within Indiana

1. Hematology & Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hematology & Oncology Physician share within Indiana

Specialty board-certification context

Estimated specialty board-certified rate — Hematology & Oncology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hematology & Oncology Physician ABMS/AOA estimate

Est. board-certified rate (Hematology & Oncology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Hematology & Oncology 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).

JOSEPH SPAHR, M.D. is a Hematology & Oncology Physician provider practicing in GOSHEN, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1659432235. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JOSEPH SPAHR, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 200 HIGH PARK AVE, GOSHEN, IN, 46526, with a listed phone of (574) 364-2888. NPI 1659432235 was issued on 12/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SPAHR 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 1,061 prescription claims written by this provider, covering 236 Medicare beneficiaries and totaling roughly $847K in drug spend, with an opioid prescribing rate of 15.0%. 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.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

200 HIGH PARK AVE
GOSHEN, IN 46526

Provider Details

NPI 1659432235
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 12/13/2006

Hospital and facility affiliations

Facilities where JOSEPH SPAHR, 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.

GOSHEN HEALTH SYSTEM INC
GOSHEN, IN

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 JOSEPH SPAHR, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$25

Largest payer

Janssen Scientific Affairs, 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.

Medicare Part D Prescribing Data

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

1,061
Total Claims
$847K
Total Drug Cost
236
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,489
Total Day Supply
38,617
Generic Drug Cost
$229K
Opioid Claims
159 (15.0% rate)
Antibiotic Claims
57

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
2.17
Gender Split
61% female / 39% male
Age Distribution
<65: 34, 65-74: 105, 75-84: 82, 85+: 15

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Eliquis
Apixaban
71
Potassium Chloride
57
Anastrozole
51
Warfarin Sodium
49
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
45
Prednisone
39
Oxycodone Hcl
33
Tramadol Hcl
31
Ondansetron Odt
Ondansetron
28
Morphine Sulfate Er
Morphine Sulfate
27

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

Hematology & Oncology Physician Overview

How JOSEPH SPAHR, M.D. fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

JOSEPH SPAHR, M.D.'s 1,061 claims are above the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Indiana

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

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOSEPH SPAHR, M.D.'s specialty?
JOSEPH SPAHR, M.D. specializes in Hematology & Oncology Physician and practices in GOSHEN, Indiana. Credentials: M.D..
How much does JOSEPH SPAHR, M.D. prescribe under Medicare Part D?
In 2023, JOSEPH SPAHR, M.D. wrote 1,061 Medicare Part D claims totaling $847K in drug costs for 236 beneficiaries.
Where is JOSEPH SPAHR, M.D. located?
JOSEPH SPAHR, M.D. is located at 200 HIGH PARK AVE, GOSHEN, IN, 46526. Phone: (574) 364-2888.
What is JOSEPH SPAHR, M.D.'s NPI number?
JOSEPH SPAHR, M.D.'s National Provider Identifier (NPI) is 1659432235, issued on 12/13/2006.
Does JOSEPH SPAHR, M.D. prescribe opioids?
Yes, JOSEPH SPAHR, M.D. had 159 opioid claims in 2023 with an opioid prescribing rate of 15.0%.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does JOSEPH SPAHR, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JOSEPH SPAHR, M.D.'s most frequently prescribed drugs include Eliquis, Potassium Chloride, Anastrozole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOSEPH SPAHR, M.D. accept Medicare?
JOSEPH SPAHR, M.D. appears in CMS Medicare data with 1,061 Part D claims and 236 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOSEPH SPAHR, M.D.'s credentials?
JOSEPH SPAHR, M.D.'s NPI is 1659432235 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