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Edit this profileWhere to find Bonni S. Massa, M.D.
- Petaluma location main office
1496 Professional Dr Ste 603, Petaluma, CA 94954 - San Francisco location
2100 Webster St, Suite 319, San Francisco, CA 94115
About Dr. Massa
Bonni S. Massa, M.D. practices obstetrics/gynecology in Petaluma, CA. Bonni is a 1997 graduate of Clvlnd Clinic Lerner College of Med of Case Wstn RSV University. Bonni is also listed as specializing in obstetrics & gynecology, gynecology, and obstetrics. Medicare claims data shows Bonni provided 160 services to 150 patients. The services billed most often include cervical or vaginal cancer screening; pelvic and clinical breast examination, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous. The provider's National Provider Identifier (NPI) is 1508933607.
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
- (628) 336-5260
- Email not available
Practice Locations
1496 PROFESSIONAL DR STE 603
Petaluma, CA 94954
2100 Webster St suite 319
San Francisco, CA 94115
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
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
Contraception
Fertility
Infections
Pregnancy Complications
Vaginal & Vulvar Health
Procedures & services
Most searched procedures
Contraception and office treatment
Pregnancy and delivery
Preventive and diagnostic
Birth Control
Contraception
Diagnostic Procedures
Fertility
Hormone & Menopause
Laparoscopic and adnexal surgery
Pelvic floor
Postpartum Care
Pregnancy & Prenatal
Preventive Care
Preventive Screening
Routine Exams
Surgeries
Uterine and cervical procedures
Procedures Most Often Billed to Medicare
160 services · 150 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
39 | More often than most peers in Obstetrics/Gynecology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
33 | As often as other peers in Obstetrics/Gynecology |
| Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous | Billing code | G0328 |
31 | Less often than most peers in Obstetrics/Gynecology |
| Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | Billing code | Q0091 |
19 | As often as other peers in Obstetrics/Gynecology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
14 | Less often than most peers in Obstetrics/Gynecology |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
13 | Less often than most peers in Obstetrics/Gynecology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
11 | Less often than most peers in Obstetrics/Gynecology |
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 obstetrics/gynecology specialists in Petaluma 8
Same specialty, same city.
Trained at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1997 at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Bonni S. Massa's specialty?
Bonni S. Massa is an obstetrics/gynecology in Petaluma, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Bonni S. Massa?
Bonni S. Massa is listed at 1496 Professional Dr Ste 603, Petaluma, CA 94954. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Bonni S. Massa?
The number on file is (628) 336-5260. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Bonni S. Massa?
Bonni S. Massa's National Provider Identifier is 1508933607. 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 Bonni S. Massa's education?
Bonni S. Massa attended Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Bonni S. Massa have?
Bonni S. Massa has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What is Bonni S. Massa known for?
According to Medicare billing data, Bonni S. Massa the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Bonni S. Massa's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Bonni S. Massa. If this is you, claiming it is free.
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