2026 NPPES data Emergency Medicine Physician NPI 1164442257 MD
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Eric Conner, MD

Emergency Medicine Physician in Bakersfield, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 64,398 in Emergency Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
276
Medicare Part D claims · 143 beneficiaries · Emergency Medicine Physician avg: 352
MIPS score
82.3/100
▼ 1 pts below national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Eric Conner, MD reported a CMS MIPS final score of 82.3/100 - below the 83.1 national average - and filed 276 Medicare Part D claims in 2023.

82.3/100
MIPS score · -1 vs avg
276
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.

Eric Conner, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

82 39th percentile higher than 39% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Eric Conner, MD sits

This provider among emergency medicine physician peers

Across the 14,967 emergency medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Eric Conner, MD writes more Part D claims than 75% of them and scores higher on MIPS quality than 30% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 88Eric Conner, MD-Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 30
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one emergency medicine physician peer from a representative sample of 60; the gold marker is Eric Conner, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Eric Conner, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Eric Conner, MD?

Near national average

NPI registry status

Active

Issued 07/20/2006

NPI 1164442257

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

276 22% vs specialty avg

2023 prescription claims

Specialty avg: 352

MIPS final score

82.3/100 0.8 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Emergency Medicine Physician compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician - 17.3%Behavior Technician17.3%Marriage & Family Therapist - 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program - 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor - 3.9%Mental Health Counselor3.9%Pharmacist - 3.5%Pharmacist3.5%Clinical Social Worker - 3.1%Clinical Social Worker3.1%Emergency Medicine Physician - 0.7%Emergency Medicine Physician0.7%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Eric Conner, MD's 2023 MIPS final score plotted against the Emergency Medicine Physician national average

Near national average
MIPS Final Score
82.3/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Emergency Medicine Physician) - 82.3/100 vs national avg 83.1

0%100%National avg83%82.3%
MIPS final score (Emergency Medicine Physician) - 82.3/100 vs national avg 83.1

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 Conner, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 400 OLD RIVER RD, Bakersfield, CA, 93311, with a listed phone of (661) 477-9283. NPI 1164442257 was issued on 07/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Conner 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 276 prescription claims written by this provider, covering 143 Medicare beneficiaries and totaling roughly $3K in drug spend, with an opioid prescribing rate of 13.4%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 82.3/100 for the 2023 performance year (Quality 88.8, Cost 53), compared with the national average of 83.1.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

400 OLD RIVER RD
Bakersfield, CA 93311

Provider Details

NPI 1164442257
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 07/20/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

82.2803
Final Score
Avg: 83.1
88.8152
Quality
52.9524
Cost
99
Promoting Interoperability

Reporting: Group practice

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 Eric Conner, MD. To verify Eric Conner, MD'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.

276
Total Claims
$3K
Total Drug Cost
143
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
276
Total Day Supply
2,209
Generic Drug Cost
$2K
Opioid Claims
37 (13.4% rate)
Antibiotic Claims
79

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
1.19
Gender Split
58% female / 42% male
Age Distribution
<65: 37, 65-74: 48, 75-84: 36, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

What Eric Conner, 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
Prednisone
43
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
32
Ciprofloxacin Hcl
26
Ibuprofen
24
Ondansetron Odt
Ondansetron
19
Cyclobenzaprine Hcl
14
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
12
Azithromycin
12

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

Emergency Medicine Physician Overview

How Eric Conner, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

Eric Conner, MD's 276 claims are below the specialty average of 352.

Nearby Emergency Medicine Physician Providers in California

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Emergency Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Eric Conner, MD's specialty?
Eric Conner, MD specializes in Emergency Medicine Physician and practices in Bakersfield, California. Credentials: MD.
How much does Eric Conner, MD prescribe under Medicare Part D?
In 2023, Eric Conner, MD wrote 276 Medicare Part D claims totaling $3K in drug costs for 143 beneficiaries.
What is Eric Conner, MD's Medicare quality score?
Eric Conner, MD has a CMS MIPS Final Score of 82.3/100 (Quality: 88.8, Cost: 53). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Eric Conner, MD located?
Eric Conner, MD is located at 400 OLD RIVER RD, Bakersfield, CA, 93311. Phone: (661) 477-9283.
What is Eric Conner, MD's NPI number?
Eric Conner, MD's National Provider Identifier (NPI) is 1164442257, issued on 07/20/2006.
Does Eric Conner, MD prescribe opioids?
Yes, Eric Conner, MD had 37 opioid claims in 2023 with an opioid prescribing rate of 13.4%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does Eric Conner, MD prescribe most often?
Based on 2023 Medicare Part D data, Eric Conner, MD's most frequently prescribed drugs include Prednisone, Hydrocodone-Acetaminophen, Ciprofloxacin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Eric Conner, MD accept Medicare?
Eric Conner, MD appears in CMS Medicare data with 276 Part D claims and 143 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Eric Conner, MD's credentials?
Eric Conner, MD's NPI is 1164442257 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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

Compiled from official public sources by the PlainDoctor editorial team.