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Edit this profileAt a glance
- 10 Congress St, Suite 400, Pasadena, CA 91105
About Dr. Macer
James A. Macer, MD is a healthcare provider in Pasadena, CA specializing in obstetrics & gynecology. James trained at University of Southern California Keck School of Medicine, graduating in 1979. Medicare claims data shows James provided 608 services to 569 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, stool analysis for blood, by peroxidase activity, and cervical or vaginal cancer screening; pelvic and clinical breast examination. This provider record is associated with NPI 1134129711.
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
- (626) 449-6223
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
10 CONGRESS ST SUITE 400
Pasadena, CA 91105
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
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
608 services · 569 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina | Imaging | 76830 |
29 | More 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 |
161 | More than most peers in OB-GYN |
| Stool analysis for blood, by peroxidase activity | Lab test | 82272 |
111 | Too few peers to compare |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
102 | More than most peers in OB-GYN |
| Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | Billing code | Q0091 |
95 | More than most peers in OB-GYN |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
48 | More often than most peers in OB-GYN |
| Urinalysis, manual test | Lab test | 81002 |
38 | As often as other 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 |
24 | As often as other 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.
Other OB-GYNs at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 29 related providers in 4 groups
Other OB-GYNs in Pasadena 7
Same specialty, same city.
Trained at University of Southern California Keck School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 1979 at University of Southern California Keck School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Macer's specialty?
Dr. Macer is an OB-GYN in Pasadena, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
Where can I find Dr. Macer?
Dr. Macer is listed at 10 Congress St Suite 400, Pasadena, CA 91105. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Macer?
The number on file is (626) 449-6223. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Macer?
Dr. Macer's National Provider Identifier is 1134129711. 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
What is Dr. Macer's medical education?
Dr. Macer attended University of Southern California Keck School of Medicine, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Macer have?
Dr. Macer has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Macer known for?
According to Medicare billing data, Dr. Macer performs imaging including ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Macer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Macer. If this is you, claiming it is free.
Guide.md
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