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DR. EARL MICHAEL DARBY MD
NPI 1790743292
Internal Medicine - Gastroenterology in Oakland, CA

Active since May 03, 2006PECOS Enrolled
300 FRANK H OGAWA PLZ, SUITE 450, OAKLAND, CA 94612(510) 444-3297(510) 444-6421 Get Directions Write a Review

NPPES record last updated: November 11, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Earl Michael Darby Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. EARL MICHAEL DARBY MD (NPI 1790743292) is an individual gastroenterology provider in Oakland, California, licensed in California (G388160) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790743292
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. EARL MICHAEL DARBYCredential: MD
Location Address300 FRANK H OGAWA PLZ, SUITE 450Oakland, CA 94612-2037
Mailing Address300 Frank H Ogawa Plz, Suite 450Oakland, CA 94612-2037 · (510) 444-3297 · Fax (510) 444-6421
Phone(510) 444-3297
Fax(510) 444-6421
Sole ProprietorNo
Enumeration DateMay 3, 2006
Last NPPES UpdateNovember 11, 2013
✔ NPI 1790743292 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · G388160
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
300 FRANK H OGAWA PLZ, Oakland, CA 94612
Open in Google Maps ↗

Other Identifiers 3

Medicare PIN00G388162CA
Medicare UPINA47609
Medicare ID-Type UnspecifiedZZZ23860ZCA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Earl Michael Darby Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Earl Darby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

East Bay Center For Digestive Health Medical Associates, Inc
Same address
Gastroenterology
300 FRANK H OGAWA PLZ STE 355
Oakland, CA 94612
  • Reassigned Medicare billing, California enrollment
  • 16 clinicians in this Medicare group
NPI 1689782039 (510) 444-3297

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%853 patients5/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
96%1,659 patients4/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
99%274 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
46%600 patients2/55-star benchmark: 97%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
37%598 patients2/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients screenedForUse: 99% · 313 patients
92%192 patients4/55-star benchmark: 98%
Preventive Care and Screening: Unhealthy Alcohol Use: Screening & Brief Counseling
Percentage of patients aged 18 years and older who were screened for unhealthy alcohol use using a systematic screening method at least once within the last 24 months AND who received brief counseling if identified as an unhealthy alcohol user
58%192 patients3/55-star benchmark: 100%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
61%600 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
9%600 patients1/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
31%600 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

GREGG SHERMAN HYMAN D.M.D.
Dentist
300 FRANK H OGAWA PLZ, SUITE 100
OAKLAND, CA 94612
Alameda County (510) 444-3000
SHARON ADLER MD,MPH
Preventive Medicine (Public Health & General Preventive Medicine)
300 FRANK H OGAWA PLZ, SUITE 520, CAPTC
OAKLAND, CA 94612
Alameda County (510) 625-6029
DR. JOHN THEODORE BURNS D.M.D.
Dentist
300 FRANK H OGAWA PLZ, SUITE 100
OAKLAND, CA 94612
Alameda County (510) 763-6300
CAROLINA CASTILLO
Marriage & Family Therapist
300 FRANK H OGAWA PLZ, STE 175
OAKLAND, CA 94612
Alameda County (510) 451-0661
DORIS CHEUNG MPA, PA-C
Physician Assistant
300 FRANK H OGAWA PLZ, SUITE 450
OAKLAND, CA 94612
Alameda County (510) 444-3297
SEAN L. BULLARD D.D.S.
Dentist (General Practice)
300 FRANK H OGAWA PLZ, SUITE 100
OAKLAND, CA 94612
Alameda County (510) 763-6300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Earl Darby's NPI number?

The NPI number for Earl Darby is 1790743292. It was assigned to this individual provider in the NPPES registry on May 3, 2006.

Where is Earl Darby located?

Earl Darby practices at 300 Frank H Ogawa Plz Suite 450, Oakland, CA 94612. The listed phone number is (510) 444-3297.

What is Earl Darby's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Earl Darby enrolled in Medicare?

Yes. Earl Darby is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Earl Darby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Earl Darby reassigns Medicare benefits to East Bay Center For Digestive Health Medical Associates, Inc (Oakland, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Earl Darby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Earl Darby was last updated on November 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.