2026 NPPES data Hospitalist Physician NPI 1730202722 MD
Verify on CMS →

TIMOTHY GERACI, MD

Hospitalist Physician in VALLEJO, 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
6K
Medicare Part D claims · 772 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

TIMOTHY GERACI, MD filed 6,325 Medicare Part D claims in 2023 as a Hospitalist Physician in VALLEJO, California, prescribing 91% generic.

6K
Part D claims, 2023
91%
generic prescribing
Likely
board-certified (heuristic)

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.

TIMOTHY GERACI, MD's Medicare Part D volume vs every U.S. prescriber

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

6,325 Top 4% higher than 96% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 certification likely (heuristic — not verified)

TIMOTHY GERACI, MD 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).

What does the federal data show about TIMOTHY GERACI, MD?

Quality data not reported

NPI registry status

Active

Issued 04/06/2007

NPI 1730202722

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

6,325 612% vs specialty avg

2023 prescription claims

Specialty avg: 888

Specialty distribution in California

How Hospitalist Physician compares to other specialties among California providers

California providers

Hospitalist Physician share within California

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

Specialty board-certification context

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

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

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

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

TIMOTHY GERACI, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 975 SERENO DR, VALLEJO, CA, 94589, with a listed phone of (707) 651-2440. NPI 1730202722 was issued on 04/06/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GERACI 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 6,325 prescription claims written by this provider, covering 772 Medicare beneficiaries and totaling roughly $297K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 5.2%. 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.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

975 SERENO DR
VALLEJO, CA 94589

Provider Details

NPI 1730202722
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 04/06/2007

Hospital and facility affiliations

Facilities where TIMOTHY GERACI, MD 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.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
SAN DIEGO, 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 TIMOTHY GERACI, MD. To verify TIMOTHY GERACI, 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

TIMOTHY GERACI, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 6,325 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.

6,325
Total Claims
$297K
Total Drug Cost
772
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
16,500
Total Day Supply
484,625
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$187K
Generic Drug Cost
$108K
Opioid Claims
327 (5.2% rate)
Antibiotic Claims
79

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
1.20
Gender Split
42% female / 58% male
Age Distribution
<65: 38, 65-74: 360, 75-84: 287, 85+: 87

Top Prescribed Drugs (Medicare Part D)

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

What TIMOTHY GERACI, 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
Atorvastatin Calcium
614
Amlodipine Besylate
328
Losartan Potassium
291
Rosuvastatin Calcium
241
Lisinopril
236
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
173
Metformin Hcl Er
Metformin Hcl
169
Metoprolol Tartrate
163
Levothyroxine Sodium
140
Hydrochlorothiazide
135

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

Hospitalist Physician Overview

How TIMOTHY GERACI, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

TIMOTHY GERACI, MD's 6,325 claims are above the specialty average of 888.

Nearby Hospitalist Physician Providers in California

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

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

Frequently Asked Questions

What is TIMOTHY GERACI, MD's specialty?
TIMOTHY GERACI, MD specializes in Hospitalist Physician and practices in VALLEJO, California. Credentials: MD.
How much does TIMOTHY GERACI, MD prescribe under Medicare Part D?
In 2023, TIMOTHY GERACI, MD wrote 6,325 Medicare Part D claims totaling $297K in drug costs for 772 beneficiaries.
Where is TIMOTHY GERACI, MD located?
TIMOTHY GERACI, MD is located at 975 SERENO DR, VALLEJO, CA, 94589. Phone: (707) 651-2440.
What is TIMOTHY GERACI, MD's NPI number?
TIMOTHY GERACI, MD's National Provider Identifier (NPI) is 1730202722, issued on 04/06/2007.
Does TIMOTHY GERACI, MD prescribe more brand-name or generic drugs?
TIMOTHY GERACI, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $187K in brand drug costs.
Does TIMOTHY GERACI, MD prescribe opioids?
Yes, TIMOTHY GERACI, MD had 327 opioid claims in 2023 with an opioid prescribing rate of 5.2%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does TIMOTHY GERACI, MD prescribe most often?
Based on 2023 Medicare Part D data, TIMOTHY GERACI, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TIMOTHY GERACI, MD accept Medicare?
TIMOTHY GERACI, MD appears in CMS Medicare data with 6,325 Part D claims and 772 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TIMOTHY GERACI, MD's credentials?
TIMOTHY GERACI, MD's NPI is 1730202722 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