2026 NPPES data Emergency Medical Services (Emergency Medicine) Physician NPI 1659522852 MD
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MOLLY KEEGAN, MD

Emergency Medical Services (Emergency Medicine) Physician in OAKLAND, 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
132
Medicare Part D claims · 97 beneficiaries · Emergency Medical Services (Emergency Medicine) Physician avg: 394

What the federal data shows

MOLLY KEEGAN, MD filed 132 Medicare Part D claims in 2023 as a Emergency Medical Services (Emergency Medicine) Physician in OAKLAND, California.

132
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.

MOLLY KEEGAN, MD's Medicare Part D volume vs every U.S. prescriber

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

132 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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)

MOLLY KEEGAN, 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 MOLLY KEEGAN, MD?

Quality data not reported

NPI registry status

Active

Issued 10/06/2008

NPI 1659522852

Primary specialty

Emergency Medical Services (Emergency Medicine) Physician

Niche

3,616 US NPIs in this specialty

Medicare Part D claims

132 66% 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).

MOLLY KEEGAN, MD appears in the CMS NPPES registry as a Emergency Medical Services (Emergency Medicine) Physician provider holding MD credentials at 275 W MACARTHUR BLVD, OAKLAND, CA, 94611, with a listed phone of (510) 752-1000. NPI 1659522852 was issued on 10/06/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KEEGAN 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 132 prescription claims written by this provider, covering 97 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 20.5%. 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

275 W MACARTHUR BLVD
OAKLAND, CA 94611

Provider Details

NPI 1659522852
Specialty Emergency Medical Services (Emergency Medicine) Physician
Credentials MD
Gender Female
NPI Issued 10/06/2008

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 MOLLY KEEGAN, MD. To verify MOLLY KEEGAN, 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.

132
Total Claims
$2K
Total Drug Cost
97
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
147
Total Day Supply
2,245
Generic Drug Cost
$1K
Opioid Claims
27 (20.5% rate)
Antibiotic Claims
27

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
2.64
Gender Split
62% female / 38% male
Age Distribution
<65: 16, 65-74: 33, 75-84: 30, 85+: 18

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
13
Cefadroxil
11

* 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 MOLLY KEEGAN, 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

MOLLY KEEGAN, MD's 132 claims are below 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 KEEGAN.

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

Frequently Asked Questions

What is MOLLY KEEGAN, MD's specialty?
MOLLY KEEGAN, MD specializes in Emergency Medical Services (Emergency Medicine) Physician and practices in OAKLAND, California. Credentials: MD.
How much does MOLLY KEEGAN, MD prescribe under Medicare Part D?
In 2023, MOLLY KEEGAN, MD wrote 132 Medicare Part D claims totaling $2K in drug costs for 97 beneficiaries.
Where is MOLLY KEEGAN, MD located?
MOLLY KEEGAN, MD is located at 275 W MACARTHUR BLVD, OAKLAND, CA, 94611. Phone: (510) 752-1000.
What is MOLLY KEEGAN, MD's NPI number?
MOLLY KEEGAN, MD's National Provider Identifier (NPI) is 1659522852, issued on 10/06/2008.
Does MOLLY KEEGAN, MD prescribe opioids?
Yes, MOLLY KEEGAN, MD had 27 opioid claims in 2023 with an opioid prescribing rate of 20.5%.
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 MOLLY KEEGAN, MD prescribe most often?
Based on 2023 Medicare Part D data, MOLLY KEEGAN, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Cefadroxil. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MOLLY KEEGAN, MD accept Medicare?
MOLLY KEEGAN, MD appears in CMS Medicare data with 132 Part D claims and 97 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MOLLY KEEGAN, MD's credentials?
MOLLY KEEGAN, MD's NPI is 1659522852 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