2026 NPPES data Gynecology Physician NPI 1710163902 M.D.
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TERESE HARRIS, M.D.

Gynecology Physician in HUNTINGTON BEACH, 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
203
Medicare Part D claims · 30 beneficiaries · Gynecology Physician avg: 295

What the federal data shows

TERESE HARRIS, M.D. filed 203 Medicare Part D claims in 2023 as a Gynecology Physician in HUNTINGTON BEACH, California.

203
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.

TERESE HARRIS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

203 49th percentile higher than 49% of 1,370,886 prescribers

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

TERESE HARRIS, M.D. 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 TERESE HARRIS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 01/17/2008

NPI 1710163902

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

203 31% 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).

TERESE HARRIS, M.D. appears in the CMS NPPES registry as a Gynecology Physician provider holding M.D. credentials at 19671 BEACH BLVD, HUNTINGTON BEACH, CA, 92648, with a listed phone of (714) 794-1818. NPI 1710163902 was issued on 01/17/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HARRIS 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 203 prescription claims written by this provider, covering 30 Medicare beneficiaries and totaling roughly $9K 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

19671 BEACH BLVD
HUNTINGTON BEACH, CA 92648

Provider Details

NPI 1710163902
Specialty Gynecology Physician
Credentials M.D.
Gender Female
NPI Issued 01/17/2008

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 TERESE HARRIS, M.D.. To verify TERESE HARRIS, M.D.'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.

203
Total Claims
$9K
Total Drug Cost
30
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
357
Total Day Supply
10,436
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
69.2 years
Avg HCC Risk Score
0.67

Top Prescribed Drugs (Medicare Part D)

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

What TERESE HARRIS, M.D. 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
Metformin Hcl
22
Estradiol (Twice Weekly)
Estradiol
17
Levothyroxine Sodium
16
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 TERESE HARRIS, M.D. fits within the Gynecology Physician landscape nationally.

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

TERESE HARRIS, M.D.'s 203 claims are below 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 HARRIS.

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

Frequently Asked Questions

What is TERESE HARRIS, M.D.'s specialty?
TERESE HARRIS, M.D. specializes in Gynecology Physician and practices in HUNTINGTON BEACH, California. Credentials: M.D..
How much does TERESE HARRIS, M.D. prescribe under Medicare Part D?
In 2023, TERESE HARRIS, M.D. wrote 203 Medicare Part D claims totaling $9K in drug costs for 30 beneficiaries.
Where is TERESE HARRIS, M.D. located?
TERESE HARRIS, M.D. is located at 19671 BEACH BLVD, HUNTINGTON BEACH, CA, 92648. Phone: (714) 794-1818.
What is TERESE HARRIS, M.D.'s NPI number?
TERESE HARRIS, M.D.'s National Provider Identifier (NPI) is 1710163902, issued on 01/17/2008.
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 TERESE HARRIS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, TERESE HARRIS, M.D.'s most frequently prescribed drugs include Metformin Hcl, Estradiol (Twice Weekly), Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TERESE HARRIS, M.D. accept Medicare?
TERESE HARRIS, M.D. appears in CMS Medicare data with 203 Part D claims and 30 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TERESE HARRIS, M.D.'s credentials?
TERESE HARRIS, M.D.'s NPI is 1710163902 with credentials M.D.. 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