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Edit this profileAt a glance
- 3030 Westchester Ave, Purchase, NY 10577
About Dr. Gretz
Herbert Gretz, M.D. practices gynecologic oncology in Purchase, NY. Herbert is a 1986 graduate of New York Medical College. Medicare claims data shows Herbert provided 614 services to 501 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, pelvic exam, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. The provider's National Provider Identifier (NPI) is 1376593301.
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
- (914) 305-2730
- Email not available
Practice Locations
3030 WESTCHESTER AVE
Purchase, NY 10577
Procedures Most Often Billed to Medicare
614 services · 501 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
23 | Less often than most peers in Gynecologic Oncology |
| Exam of cervix and upper part of vagina using an endoscope | Procedure | 57452 |
19 | Too few peers to compare |
| Removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less | Procedure | 58571 |
15 | As often as other peers in Gynecologic Oncology |
| Removal of ovaries and/or tubes using an endoscope | Procedure | 58661 |
12 | Less often than most peers in Gynecologic Oncology |
| Biopsy of lining of uterus | Procedure | 58100 |
11 | Less often than most peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
244 | More than most peers in Gynecologic Oncology |
| Pelvic exam | Office visit | 99459 |
168 | More often than most peers in Gynecologic Oncology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
55 | More than most peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
39 | Less often than most peers in Gynecologic Oncology |
| 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 |
17 | Less often than most peers in Gynecologic Oncology |
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 gynecologic oncology specialists at this location 1
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.
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1986 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in NY who bill this service to Medicare most often.
Common questions
What kind of doctor is Herbert Gretz?
Herbert Gretz is a gynecologic oncology in Purchase, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Herbert Gretz's address?
Herbert Gretz is listed at 3030 Westchester Ave, Purchase, NY 10577. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Herbert Gretz?
The number on file is (914) 305-2730. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Herbert Gretz?
Herbert Gretz's National Provider Identifier is 1376593301. 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 Herbert Gretz train?
Herbert Gretz attended New York Medical College, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Herbert Gretz have?
Herbert Gretz has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What procedures does Herbert Gretz perform?
According to Medicare billing data, Herbert Gretz performs procedures including insertion of needle into vein for collection of blood sample, exam of cervix and upper part of vagina using an endoscope and removal of uterus, tubes, and/or ovaries through abdomen using an endoscope, 250.0 g or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Herbert Gretz's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Herbert Gretz. If this is you, claiming it is free.
Guide.md
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