In Vivo & In Vitro Nuclear Medicine Physician
NUCC 207UN0903X · Nuclear Medicine
14 CMS NPPES-registered providers across 11 states · 660th of 690 specialties by headcount.
Where this specialty sits in the corpus
In Vivo & In Vitro Nuclear Medicine Physician ranks 660th of 690 NUCC specialties by CMS NPPES headcount (0% of all registered NPIs), densest in California.
- 14
- NPPES providers in specialty
- 660th
- of 690 specialties
- 1327
- state-share HHI
- 14.3%
- Part D prescriber share
4 states hold half of this specialty's national roster; 0.9% of the Nuclear Medicine category.
Taxonomy fingerprint
In Vivo & In Vitro Nuclear Medicine Physician (NUCC 207UN0903X; 14.3% Part D prescribers (2 of 14); avg 34 Part D claims/prescriber (547th of 572); Open Payments avg $135/physician (493rd of 551; 1 paid, $135 total); state-share HHI 1,327; next-larger headcount neighbor Biochemist (+1); next-smaller Medical Research Veterinarian (-1)).
Next larger: Biochemist (15) Next smaller: Medical Research Veterinarian (13)
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 4 |
| 2 | Alabama | 1 |
| 3 | Florida | 1 |
| 4 | Hawaii | 1 |
| 5 | Illinois | 1 |
| 6 | Louisiana | 1 |
| 7 | Michigan | 1 |
| 8 | North Carolina | 1 |
Sample In Vivo & In Vitro Nuclear Medicine Physician NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Amol Takalkar, M.D.Shreveport, LA |
| 2 | Mark Bernard, MDFresno, CA |
| 3 | Penny Vandestreek, D.O.Roseville, CA |
| 4 | Vishnu Bobba, MDFresno, CA |
| 5 | Joseph Floresca, M.D.El Paso, TX |
| 6 | Chaitanya Chandarlapaty, M.D.Miami, FL |
| 7 | Constance Wojtowicz, MDChicago, IL |
| 8 | Srinivas Shroff, M.D.Montgomery, AL |
| 9 | Heinrich Schelbert, M.D.Los Angeles, CA |
| 10 | Mikhail Makovski, M.D.Kent, WA |
| 11 | Sue Abreu, M.D.Beaufort, NC |
| 12 | Khurram Rashid, M.D.Clinton Township, MI |
Frequently Asked Questions
Why is In Vivo & In Vitro Nuclear Medicine Physician a thin NUCC code in NPPES?
Do the few In Vivo & In Vitro Nuclear Medicine Physician NPIs in Open Payments look unusual?
How much Part D prescribing does this specialty do?
Data sources and methodology
Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). Part D averages from the CMS Medicare Part D Prescriber PUF; industry payments from CMS Open Payments 2024. Counts reflect self-designated primary taxonomy at NPI enrollment. PlainDoctor does not rate or rank providers. Methodology · About
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-27.