2026 NPPES data Gynecology Physician NPI 1073689683 MD
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JERALYN BROSSFIELD, MD

Gynecology Physician in RANCHO MIRAGE, 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
588
Medicare Part D claims · 67 beneficiaries · Gynecology Physician avg: 295
What the federal data reveals: JERALYN BROSSFIELD, MD is a Gynecology Physician ([object Object]) practicing in RANCHO MIRAGE, California with a Medicare Part D prescribing footprint of 588 claims across 67 beneficiaries .

What stands out: JERALYN BROSSFIELD, MD filed 588 Medicare Part D claims in 2023 across RANCHO MIRAGE, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

JERALYN BROSSFIELD, 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).

JERALYN BROSSFIELD, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/27/2006

NPI 1073689683

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

588 99% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in California

How Gynecology Physician compares to other specialties among California providers

California providers

Gynecology Physician share within California

1. Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecology Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Gynecology Physician (ABMS / AOA reference)

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

Est. board-certified rate (Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gynecology 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).

JERALYN BROSSFIELD, MD is a Gynecology Physician provider practicing in RANCHO MIRAGE, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1073689683. 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.

JERALYN BROSSFIELD, MD appears in the CMS NPPES registry as a Gynecology Physician provider holding MD credentials at 72301 COUNTRY CLUB DR STE 104, RANCHO MIRAGE, CA, 92270, with a listed phone of (760) 573-2761. NPI 1073689683 was issued on 11/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BROSSFIELD 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 588 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $73K in drug spend. 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.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 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

72301 COUNTRY CLUB DR STE 104
RANCHO MIRAGE, CA 92270

Provider Details

NPI 1073689683
Specialty Gynecology Physician
Credentials MD
Gender Female
NPI Issued 11/27/2006

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 JERALYN BROSSFIELD, MD. To verify JERALYN BROSSFIELD, 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.

588
Total Claims
$73K
Total Drug Cost
67
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,217
Total Day Supply
35,074
Generic Drug Cost
$21K
Antibiotic Claims
33

Patient Demographics

Average Patient Age
75.2 years
Avg HCC Risk Score
0.83
Gender Split
70% female / 30% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
104
Liothyronine Sodium
57
Estradiol (Twice Weekly)
Estradiol
29
Valacyclovir
Valacyclovir Hcl
18
Zolpidem Tartrate
18
Estradiol
15
Colesevelam Hcl
12
Trazodone Hcl
12
Alprazolam
11
Progesterone
"Progesterone
N/A

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

Gynecology Physician Overview

How JERALYN BROSSFIELD, MD fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

JERALYN BROSSFIELD, MD's 588 claims are above the specialty average of 295.

Nearby Gynecology Physician Providers in California

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

Compare Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JERALYN BROSSFIELD, MD's specialty?
JERALYN BROSSFIELD, MD specializes in Gynecology Physician and practices in RANCHO MIRAGE, California. Credentials: MD.
How much does JERALYN BROSSFIELD, MD prescribe under Medicare Part D?
In 2023, JERALYN BROSSFIELD, MD wrote 588 Medicare Part D claims totaling $73K in drug costs for 67 beneficiaries.
Where is JERALYN BROSSFIELD, MD located?
JERALYN BROSSFIELD, MD is located at 72301 COUNTRY CLUB DR STE 104, RANCHO MIRAGE, CA, 92270. Phone: (760) 573-2761.
What is JERALYN BROSSFIELD, MD's NPI number?
JERALYN BROSSFIELD, MD's National Provider Identifier (NPI) is 1073689683, issued on 11/27/2006.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does JERALYN BROSSFIELD, MD prescribe most often?
Based on 2023 Medicare Part D data, JERALYN BROSSFIELD, MD's most frequently prescribed drugs include Levothyroxine Sodium, Liothyronine Sodium, Estradiol (Twice Weekly). This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JERALYN BROSSFIELD, MD accept Medicare?
JERALYN BROSSFIELD, MD appears in CMS Medicare data with 588 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JERALYN BROSSFIELD, MD's credentials?
JERALYN BROSSFIELD, MD's NPI is 1073689683 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