2026 NPPES data Obstetrics Physician NPI 1467851337 D.O.
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JENNIFER GIESE, D.O.

Obstetrics Physician in BAKERSFIELD, 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
256
Medicare Part D claims · 109 beneficiaries · Obstetrics Physician avg: 319
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JENNIFER GIESE, D.O. is a Obstetrics Physician ([object Object]) practicing in BAKERSFIELD, California with a Medicare Part D prescribing footprint of 256 claims across 109 beneficiaries — 9% brand-name prescribing .

What stands out: JENNIFER GIESE, D.O. filed 256 Medicare Part D claims in 2023 across BAKERSFIELD, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JENNIFER GIESE, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JENNIFER GIESE, D.O. at a glance

Quality data not reported

NPI registry status

Active

Issued 08/17/2014

NPI 1467851337

Primary specialty

Obstetrics Physician

Niche

1,402 US NPIs in this specialty

Medicare Part D claims

256 20% vs specialty avg

2023 prescription claims

Specialty avg: 319

Specialty distribution in California

How Obstetrics Physician compares to other specialties among California providers

California providers

Obstetrics Physician share within California

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

Specialty board-certification context

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

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

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

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

JENNIFER GIESE, D.O. is a Obstetrics Physician provider practicing in BAKERSFIELD, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1467851337. 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.

JENNIFER GIESE, D.O. appears in the CMS NPPES registry as a Obstetrics Physician provider holding D.O. credentials at 13608 DROMORE CT, BAKERSFIELD, CA, 93314, with a listed phone of (661) 326-2800. NPI 1467851337 was issued on 08/17/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GIESE 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 256 prescription claims written by this provider, covering 109 Medicare beneficiaries and totaling roughly $18K in drug spend, split 9% brand-name and 91% generic by claim count. 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.

Obstetrics Physician is a narrow specialty nationwide, with 1,402 enrolled providers across 54 states and an average of 319 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

13608 DROMORE CT
BAKERSFIELD, CA 93314

Provider Details

NPI 1467851337
Specialty Obstetrics Physician
Credentials D.O.
Gender Female
NPI Issued 08/17/2014

Hospital and facility affiliations

Facilities where JENNIFER GIESE, D.O. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

PERMANENTE MEDICAL GROUP INC
FAIRFIELD, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 JENNIFER GIESE, D.O.. To verify JENNIFER GIESE, D.O.'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

JENNIFER GIESE, D.O. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 256 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.

256
Total Claims
$18K
Total Drug Cost
109
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
535
Total Day Supply
15,009
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$9K
Generic Drug Cost
$8K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.03
Gender Split
100% female / 0% 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
Estradiol
73
Clobetasol Propionate
22
Acyclovir
21
Yuvafem
Estradiol
19
Estring
Estradiol
14
Citalopram Hbr
Citalopram Hydrobromide
11

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

Obstetrics Physician Overview

How JENNIFER GIESE, D.O. fits within the Obstetrics Physician landscape nationally.

1,402
Obstetrics Physician Providers in US
54
States with Obstetrics Physician
319
Avg Claims per Provider

JENNIFER GIESE, D.O.'s 256 claims are below the specialty average of 319.

Nearby Obstetrics Physician Providers in California

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

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

Frequently Asked Questions

What is JENNIFER GIESE, D.O.'s specialty?
JENNIFER GIESE, D.O. specializes in Obstetrics Physician and practices in BAKERSFIELD, California. Credentials: D.O..
How much does JENNIFER GIESE, D.O. prescribe under Medicare Part D?
In 2023, JENNIFER GIESE, D.O. wrote 256 Medicare Part D claims totaling $18K in drug costs for 109 beneficiaries.
Where is JENNIFER GIESE, D.O. located?
JENNIFER GIESE, D.O. is located at 13608 DROMORE CT, BAKERSFIELD, CA, 93314. Phone: (661) 326-2800.
What is JENNIFER GIESE, D.O.'s NPI number?
JENNIFER GIESE, D.O.'s National Provider Identifier (NPI) is 1467851337, issued on 08/17/2014.
Does JENNIFER GIESE, D.O. prescribe more brand-name or generic drugs?
JENNIFER GIESE, D.O.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $9K in brand drug costs.
How many Obstetrics Physician providers are there in the US?
There are 1,402 Obstetrics Physician providers across 54 states in the US. The average Obstetrics Physician provider writes 319 Medicare Part D claims per year.
What drugs does JENNIFER GIESE, D.O. prescribe most often?
Based on 2023 Medicare Part D data, JENNIFER GIESE, D.O.'s most frequently prescribed drugs include Estradiol, Clobetasol Propionate, Acyclovir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JENNIFER GIESE, D.O. accept Medicare?
JENNIFER GIESE, D.O. appears in CMS Medicare data with 256 Part D claims and 109 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNIFER GIESE, D.O.'s credentials?
JENNIFER GIESE, D.O.'s NPI is 1467851337 with credentials D.O.. 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