2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1699938704 MD
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MELISSA MIDDLETON, MD

Emergency Medical Services (Emergency Medicine) Physician in FONTANA, 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
590
Medicare Part D claims · 354 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 394
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MELISSA MIDDLETON, MD filed 590 Medicare Part D claims in 2023 as a Emergency Medical Services (Emergency Medicine) Physician in FONTANA, California, prescribing 93% generic.

590
Part D claims, 2023
93%
generic prescribing

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.

MELISSA MIDDLETON, MD's Medicare Part D volume vs every U.S. prescriber

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

590 Top 34% higher than 66% 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%). This entry sits in this band. 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)

MELISSA MIDDLETON, 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 MELISSA MIDDLETON, MD?

Quality data not reported

NPI registry status

Active

Issued 07/08/2008

NPI 1699938704

Primary specialty

Emergency Medical Services (Emergency Medicine) Physician

Niche

3,616 US NPIs in this specialty

Medicare Part D claims

590 50% vs specialty avg

2023 prescription claims

Specialty avg: 394

Specialty distribution in California

How Emergency Medical Services (Emergency Medicine) Physician compares to other specialties among California providers

California providers

Emergency Medical Services (Emergency Medicine) Physician share within California

1. Emergency Medical Services (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medical Services (Emergency Medicine) Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medical Services (Emergency Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Emergency Medical Services (Emergency Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Emergency Medical Services (Emergency Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medical Services (Emergency 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).

MELISSA MIDDLETON, MD appears in the CMS NPPES registry as a Emergency Medical Services (Emergency Medicine) Physician provider holding MD credentials at 9961 SIERRA AVE, FONTANA, CA, 92335, with a listed phone of (833) 574-2273. NPI 1699938704 was issued on 07/08/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MIDDLETON 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 590 prescription claims written by this provider, covering 354 Medicare beneficiaries and totaling roughly $13K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 15.6%. 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.

Emergency Medical Services (Emergency Medicine) Physician is a narrow specialty nationwide, with 3,616 enrolled providers across 55 states and an average of 394 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

9961 SIERRA AVE
FONTANA, CA 92335

Provider Details

NPI 1699938704
Specialty Emergency Medical Services (Emergency Medicine) Physician
Credentials MD
Gender Female
NPI Issued 07/08/2008

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 MELISSA MIDDLETON, MD. To verify MELISSA MIDDLETON, 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.

Brand vs generic prescribing mix · Generic-heavy

MELISSA MIDDLETON, MD — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 590 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.

590
Total Claims
$13K
Total Drug Cost
354
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
684
Total Day Supply
11,226
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$5K
Generic Drug Cost
$8K
Opioid Claims
92 (15.6% rate)
Antibiotic Claims
144

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
2.20
Gender Split
58% female / 42% male
Age Distribution
<65: 38, 65-74: 139, 75-84: 123, 85+: 54

Top Prescribed Drugs (Medicare Part D)

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

What MELISSA MIDDLETON, 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
46
Ondansetron Odt
Ondansetron
39
Cephalexin
34
Doxycycline Monohydrate
29
Lactulose
27
Prednisone
22
Tramadol Hcl
20
Meclizine Hcl
19
Cefpodoxime Proxetil
16
Ciprofloxacin Hcl
15

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

Emergency Medical Services (Emergency Medicine) Physician Overview

How MELISSA MIDDLETON, MD fits within the Emergency Medical Services (Emergency Medicine) Physician landscape nationally.

3,616
Emergency Medical Services (Emergency Medicine) Physician Providers in US
55
States with Emergency Medical Services (Emergency Medicine) Physician
394
Avg Claims per Provider

MELISSA MIDDLETON, MD's 590 claims are above the specialty average of 394.

Nearby Emergency Medical Services (Emergency Medicine) Physician Providers in California

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

Compare Emergency Medical Services (Emergency Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MELISSA MIDDLETON, MD's specialty?
MELISSA MIDDLETON, MD specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in FONTANA, California. Credentials: MD.
How much does MELISSA MIDDLETON, MD prescribe under Medicare Part D?
In 2023, MELISSA MIDDLETON, MD wrote 590 Medicare Part D claims totaling $13K in drug costs for 354 beneficiaries.
Where is MELISSA MIDDLETON, MD located?
MELISSA MIDDLETON, MD is located at 9961 SIERRA AVE, FONTANA, CA, 92335. Phone: (833) 574-2273.
What is MELISSA MIDDLETON, MD's NPI number?
MELISSA MIDDLETON, MD's National Provider Identifier (NPI) is 1699938704, issued on 07/08/2008.
Does MELISSA MIDDLETON, MD prescribe more brand-name or generic drugs?
MELISSA MIDDLETON, MD's prescribing is 7% brand-name and 93% generic drugs by claim count, with $5K in brand drug costs.
Does MELISSA MIDDLETON, MD prescribe opioids?
Yes, MELISSA MIDDLETON, MD had 92 opioid claims in 2023 with an opioid prescribing rate of 15.6%.
How many Emergency Medical Services (Emergency Medicine) Physician providers are there in the US?
There are 3,616 Emergency Medical Services (Emergency Medicine) Physician providers across 55 states in the US. The average Emergency Medical Services (Emergency Medicine) Physician provider writes 394 Medicare Part D claims per year.
What drugs does MELISSA MIDDLETON, MD prescribe most often?
Based on 2023 Medicare Part D data, MELISSA MIDDLETON, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Ondansetron Odt, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MELISSA MIDDLETON, MD accept Medicare?
MELISSA MIDDLETON, MD appears in CMS Medicare data with 590 Part D claims and 354 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MELISSA MIDDLETON, MD's credentials?
MELISSA MIDDLETON, MD's NPI is 1699938704 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