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DR. ESTHER JUNE TOW-DER M.D.
NPI 1427008028
Obstetrics & Gynecology in Modesto, CA

Active since May 12, 2006PECOS EnrolledAccepts Medicare Assignment
1552 COFFEE RD, MODESTO, CA 95355(209) 521-4372(209) 523-2005 Get Directions Write a Review

NPPES record last updated: February 24, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Esther June Tow-der M.d. NPPES

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

DR. ESTHER JUNE TOW-DER M.D. (NPI 1427008028) is an individual obstetrics & gynecology provider in Modesto, California, licensed in California (G58918) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1985).

NPPES Registry Identity

NPI1427008028
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. ESTHER JUNE TOW-DERCredential: M.D.
Location Address1552 COFFEE RDModesto, CA 95355-3107
Mailing Address1552 Coffee RdModesto, CA 95355-3107 · (209) 521-4372 · Fax (209) 523-2005
Phone(209) 521-4372
Fax(209) 523-2005
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1985
Enumeration DateMay 12, 2006
Last NPPES UpdateFebruary 24, 2020
✔ NPI 1427008028 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · G58918
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1552 COFFEE RD, Modesto, CA 95355
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Esther June Tow-der M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9537240379
PECOS Enrollment IDI20080117000385
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 Esther Tow-der reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hera Obgyn Medical Group, Inc.
Same address
Obstetrics & Gynecology
1552 COFFEE RD, 1ST FLOOR
Modesto, CA 95355
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Hera Ob-Gyn Medical Group Inc
  • 9 clinicians in this Medicare group
NPI 1992710768 (209) 521-4372

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

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
71 services47 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
30 services30 patients
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory Q0091
A Papanicolaou smear, often called a Pap smear, is a test to check for changes in cells. A small sample is gently collected from the lower region and sent to a lab for examination. This helps in early detection of potential health issues.
25 services25 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
24 services24 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
22 services22 patients
Complete ultrasound scan of pelvis 76856
A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.
12 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95355 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 9

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

MS. PAM SUE GRASSMIDT RNC
Nurse Practitioner (Adult Health)
1552 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 521-4372
STEPHEN K LIU MD PROFESSIONAL CORPORATION
Radiology (Vascular & Interventional Radiology)
1552 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 524-2333
PRUDENCE TICKNOR RD
Dietitian, Registered
1552 COFFEE RD, SUITE 200
MODESTO, CA 95355
Stanislaus County (209) 248-7168
MATTHEW LAURENCE TILSTRA MD
Obstetrics & Gynecology
1552 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 521-4372
STEPHEN KAO LIU M.D.
Radiology (Vascular & Interventional Radiology)
1552 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 524-2333
DR. NICHOLAS HOLT HOPKINS MD
Obstetrics & Gynecology
1552 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 521-4372
DR. JAMES YUEN KUEN YIP M.D.
Obstetrics & Gynecology
1552 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 521-4372
ADRIENNE MICHELLE RIVERA NP
Nurse Practitioner
1552 COFFEE RD
MODESTO, CA 95355
Stanislaus County (209) 521-4372

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 Esther Tow-der's NPI number?

The NPI number for Esther Tow-der is 1427008028. It was assigned to this individual provider in the NPPES registry on May 12, 2006.

Where is Esther Tow-der located?

Esther Tow-der practices at 1552 Coffee Rd, Modesto, CA 95355. The listed phone number is (209) 521-4372.

What is Esther Tow-der's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Esther Tow-der enrolled in Medicare?

Yes. Esther Tow-der is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Esther Tow-der's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Esther Tow-der reassigns Medicare benefits to Hera Obgyn Medical Group, Inc. (Modesto, 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 Esther Tow-der'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 Esther Tow-der was last updated on February 24, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.