2026 NPPES data Undersea and Hyperbaric Medicine (Preventive Medicine) Physician NPI 1568417574 MD
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ERIC SPENCER, MD

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in SPRINGFIELD, Oregon. 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
273
Medicare Part D claims · 211 beneficiaries · Undersea and Hyperbaric Medicine (Preventive Medicine) Physician avg: 522

What the federal data shows

ERIC SPENCER, MD filed 273 Medicare Part D claims in 2023 as a Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in SPRINGFIELD, Oregon.

273
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.

ERIC SPENCER, MD's Medicare Part D volume vs every U.S. prescriber

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

273 49th percentile higher than 49% 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-eligible specialty (heuristic — not verified)

ERIC SPENCER, 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 ERIC SPENCER, MD?

Quality data not reported

NPI registry status

Active

Issued 05/24/2006

NPI 1568417574

Primary specialty

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician

Rare

237 US NPIs in this specialty

Medicare Part D claims

273 48% vs specialty avg

2023 prescription claims

Specialty avg: 522

Specialty distribution in Oregon

How Undersea and Hyperbaric Medicine (Preventive Medicine) Physician compares to other specialties among Oregon providers

Oregon providers

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician share within Oregon

1. Undersea and Hyperbaric Medicine (Preventive Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Undersea and Hyperbaric Medicine (Preventive Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Undersea and Hyperbaric Medicine (Preventive Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Undersea and Hyperbaric Medicine (Preventive 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).

ERIC SPENCER, MD appears in the CMS NPPES registry as a Undersea and Hyperbaric Medicine (Preventive Medicine) Physician provider holding MD credentials at 1460 G ST, SPRINGFIELD, OR, 97477, with a listed phone of (541) 726-4400. NPI 1568417574 was issued on 05/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SPENCER 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 273 prescription claims written by this provider, covering 211 Medicare beneficiaries and totaling roughly $8K in drug spend, with an opioid prescribing rate of 18.3%. 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.

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician is a narrow specialty nationwide, with 237 enrolled providers across 41 states and an average of 522 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

1460 G ST
SPRINGFIELD, OR 97477

Provider Details

NPI 1568417574
Specialty Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
Credentials MD
Gender Male
NPI Issued 05/24/2006

Medicare Part D Prescribing Data

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

273
Total Claims
$8K
Total Drug Cost
211
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
273
Total Day Supply
3,165
Generic Drug Cost
$4K
Opioid Claims
50 (18.3% rate)
Antibiotic Claims
103

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
1.72
Gender Split
59% female / 41% male
Age Distribution
<65: 43, 65-74: 81, 75-84: 61, 85+: 26

Top Prescribed Drugs (Medicare Part D)

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

What ERIC SPENCER, 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
33
Prednisone
20
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
18
Cefpodoxime Proxetil
17
Amlodipine Besylate
13
Cephalexin
13
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
11
Omeprazole
11
Ondansetron Odt
Ondansetron
11

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

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Overview

How ERIC SPENCER, MD fits within the Undersea and Hyperbaric Medicine (Preventive Medicine) Physician landscape nationally.

237
Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Providers in US
41
States with Undersea and Hyperbaric Medicine (Preventive Medicine) Physician
522
Avg Claims per Provider

ERIC SPENCER, MD's 273 claims are below the specialty average of 522.

Nearby Undersea and Hyperbaric Medicine (Preventive Medicine) Physician Providers in Oregon

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

Compare Undersea and Hyperbaric Medicine (Preventive Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ERIC SPENCER, MD's specialty?
ERIC SPENCER, MD specializes in Undersea and Hyperbaric Medicine (Preventive Medicine) Physician and practices in SPRINGFIELD, Oregon. Credentials: MD.
How much does ERIC SPENCER, MD prescribe under Medicare Part D?
In 2023, ERIC SPENCER, MD wrote 273 Medicare Part D claims totaling $8K in drug costs for 211 beneficiaries.
Where is ERIC SPENCER, MD located?
ERIC SPENCER, MD is located at 1460 G ST, SPRINGFIELD, OR, 97477. Phone: (541) 726-4400.
What is ERIC SPENCER, MD's NPI number?
ERIC SPENCER, MD's National Provider Identifier (NPI) is 1568417574, issued on 05/24/2006.
Does ERIC SPENCER, MD prescribe opioids?
Yes, ERIC SPENCER, MD had 50 opioid claims in 2023 with an opioid prescribing rate of 18.3%.
How many Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers are there in the US?
There are 237 Undersea and Hyperbaric Medicine (Preventive Medicine) Physician providers across 41 states in the US. The average Undersea and Hyperbaric Medicine (Preventive Medicine) Physician provider writes 522 Medicare Part D claims per year.
What drugs does ERIC SPENCER, MD prescribe most often?
Based on 2023 Medicare Part D data, ERIC SPENCER, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Prednisone, Sulfamethoxazole-Trimethoprim. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIC SPENCER, MD accept Medicare?
ERIC SPENCER, MD appears in CMS Medicare data with 273 Part D claims and 211 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIC SPENCER, MD's credentials?
ERIC SPENCER, MD's NPI is 1568417574 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