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Edit this profileAt a glance
- 900 W Olive Ave Ste A, Merced, CA 95348
About Dr. Thomas
Based in Merced, CA, Diane R. Thomas, M.D. is listed in the NPI registry under obstetrics & gynecology. Diane graduated from Meharry Medical College School of Medicine in 2011. Medicare claims data shows Diane provided 1,000 services to 699 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. NPI 1376882357 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (323) 409-8848
- Email not available
Practice Locations
900 W OLIVE AVE STE A
Merced, CA 95348
Conditions Commonly Evaluated or Treated
Within Obstetrics and Gynecology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Contraception
Fertility
High-risk or subspecialty
Infections
Pelvic pain and benign gynecology
- Uterine fibroids
- Chronic pelvic pain
- Ovarian cysts
- Painful intercourse
- Pelvic organ prolapse
- Urinary incontinence in women
Most searched conditions
Infections and vulvovaginal conditions
Menstrual and hormonal
- Absent periods
- Genitourinary syndrome of menopause
- Painful periods
- Perimenopause
- Premenstrual syndrome
Pregnancy
- Ectopic pregnancy
- Gestational diabetes
- Hyperemesis gravidarum
- Miscarriage
- Placenta previa
- Postpartum depression
- Preeclampsia
- Preterm labor
Cancer and precancer
- Abnormal cervical cells and cervical dysplasia
- Cervical cancer
- Endometrial cancer
- Endometrial hyperplasia
- Ovarian cancer
Pregnancy Complications
Vaginal & Vulvar Health
Procedures & services
Diagnostic Tests
Hormone & Menopause
Laparoscopic and adnexal surgery
Pelvic floor
Pregnancy and delivery
Preventive and diagnostic
- Pelvic examination
- Transvaginal ultrasound
- Well-woman examination
- Colposcopy
- Endometrial biopsy
- Human papillomavirus testing
Subspecialty procedures
Surgeries
Most searched procedures
Contraception and office treatment
Birth Control
Contraception
Diagnostic Procedures
- Amniocentesis
Fertility
- Egg freezing
- Intrauterine Insemination (IUI)
Postpartum Care
Pregnancy & Prenatal
Preventive Care
Preventive Screening
Routine Exams
Uterine and cervical procedures
Procedures Most Often Billed to Medicare
1,000 services · 699 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of temporary bladder tube | Procedure | 51701 |
49 | As often as other peers in OB-GYN |
| Insertion of device into abdomen with pressure and urine flow rate study | Procedure | 51797 |
32 | As often as other peers in OB-GYN |
| Non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings | Procedure | 51784 |
32 | As often as other peers in OB-GYN |
| Electronic assessment of bladder emptying | Procedure | 51741 |
32 | As often as other peers in OB-GYN |
| Complex measurement of pressure of urine flow in bladder with voiding pressure studies | Procedure | 51728 |
32 | More often than most peers in OB-GYN |
| Dilation of urethra using an endoscope | Procedure | 52281 |
28 | As often as other peers in OB-GYN |
| Fitting and insertion of vaginal support device | Procedure | 57160 |
13 | Less often than most peers in OB-GYN |
| Pessary, reusable, non rubber, any type | A4562 |
12 | Less often than most peers in OB-GYN | |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
508 | More than most peers in OB-GYN |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
96 | More often than most peers in OB-GYN |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other OB-GYNs in Merced 8
Same specialty, same city.
Trained at Meharry Medical College School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2011 at Meharry Medical College School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of temporary bladder tube 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Diane R. Thomas?
Diane R. Thomas is an OB-GYN in Merced, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
What is Diane R. Thomas's address?
Diane R. Thomas is listed at 900 W Olive Ave Ste A, Merced, CA 95348. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Diane R. Thomas?
The number on file is (323) 409-8848. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Diane R. Thomas?
Diane R. Thomas's National Provider Identifier is 1376882357. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Diane R. Thomas train?
Diane R. Thomas attended Meharry Medical College School of Medicine, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Diane R. Thomas have?
Diane R. Thomas has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What procedures does Diane R. Thomas perform?
According to Medicare billing data, Diane R. Thomas performs procedures including insertion of temporary bladder tube, insertion of device into abdomen with pressure and urine flow rate study and non-needle measurement and recording of electrical activity of muscles at bladder and bowel openings, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Diane R. Thomas's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Diane R. Thomas. If this is you, claiming it is free.
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