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- 12605 E 16Th Ave, Aurora, CO 80045
About Dr. Guess
Marsha K. Guess, MD, MS practices obstetrics & gynecology in Aurora, CO. Marsha is a 1997 graduate of University of California, Geffen School of Medicine. Marsha is also listed as specializing in gynecology. According to Medicare claims data, Marsha cared for 314 Medicare patients across 317 services. The services billed most often include diagnostic exam of bladder and urethra using an endoscope, new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1750593448.
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
- (720) 848-0000
- Email not available
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Practice Locations
12605 E 16TH AVE
Aurora, CO 80045
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
Postpartum Care
Pregnancy & Prenatal
Preventive Care
Preventive Screening
Routine Exams
Uterine and cervical procedures
Procedures Most Often Billed to Medicare
317 services · 314 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of bladder and urethra using an endoscope | Procedure | 52000 |
47 | More often than most peers in OB-GYN |
| Insertion of device into abdomen with pressure and urine flow rate study | Procedure | 51797 |
31 | 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 |
31 | As often as other peers in OB-GYN |
| Electronic assessment of bladder emptying | Procedure | 51741 |
31 | As often as other peers in OB-GYN |
| Complex measurement of pressure of urine flow in bladder with urethra pressure and voiding pressure studies | Procedure | 51729 |
31 | As often as other peers in OB-GYN |
| Attachment of vagina to rear pelvic bone | Procedure | 57280 |
23 | Too few peers to compare |
| Repair of herniated rectum into vaginal wall | Procedure | 57250 |
23 | More often than most peers in OB-GYN |
| Suture of rectum to sacrum through abdomen | Procedure | 45540 |
17 | Too few peers to compare |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
36 | As often as other 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 |
35 | 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.
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 Aurora 5
Same specialty, same city.
More connections — 22 related providers in 3 groups
Trained at University of California, Geffen School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at University of California, Geffen School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of bladder and urethra using an endoscope 6
Providers in CO who bill this service to Medicare most often.
Common questions
What does Dr. Guess specialize in?
Dr. Guess is an OB-GYN in Aurora, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
Where is Dr. Guess located?
Dr. Guess is listed at 12605 E 16Th Ave, Aurora, CO 80045. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Guess's phone number?
The number on file is (720) 848-0000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Guess's NPI number?
Dr. Guess's National Provider Identifier is 1750593448. 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 Dr. Guess go to medical school?
Dr. Guess attended University of California, Geffen School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Guess been practicing?
Dr. Guess has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Guess do most often?
According to Medicare billing data, Dr. Guess performs procedures including diagnostic exam of bladder and urethra using an endoscope, 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
Has Dr. Guess confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Guess. If this is you, claiming it is free.
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